Overflow drain for acrylic bathtub. Bathtub overflow drain: operating principle, installation diagram and installation rules. Bath spout with flush-overflow-fill system

Reception comfort level water procedures is largely determined by the functionality of the devices included in the plumbing equipment.

The bathtub overflow drain is responsible for the water level, preventing the bowl from overflowing, including in the event of uncontrolled filling. Which overflow model is best to choose for a bathroom and how to install the system yourself, let’s look at it in more detail.

The bathtub overflow drain is closed system pipes, one end of which is connected to the drain on board the bathroom, and the other to the exit to the sewer.

The pipes that are hermetically connected to each other must be equipped with a siphon, the key task of which is to prevent the spread of unpleasant odors in the room

Main elements modern systems bath overflow features:

• Drain neck. It is made of two halves: the upper part is a chrome funnel, which acts as a “trap” for large debris, and the lower part is an expanding pipe equipped with a nut inserted inside. The element is mounted in the drain hole at the bottom of the bowl.
• Overflow neck. It has the same design as the drain neck. The only difference is that the water outlet is not directly located, but lateral.
• Siphon. An easily removable curved pipe acts as a water seal. It can have different configurations and capacity.
• Connecting hose. The corrugated pipe is designed to drain water from the overflow neck into the siphon. It is connected to the system elements using special pipes without crimps or using a crimp nut equipped with a gasket.
• Auxiliary pipe. It is a rigid or easily bendable corrugated pipe designed to connect a siphon to a sewerage system. Drain fittings with a rigid pipe it is more reliable, but not very easy to install.

When choosing a harness Special attention pay attention to the volume of the water seal. If at some point the ventilation of the sewer riser fails to function properly, due to the resulting overpressure water from the valve will begin to be drawn into the drain.

As a result, an extremely unpleasant persistent odor will appear. A siphon with a hydraulic damper bowl volume of 300 cm 3 and above will not allow the smell to spread into the room.

What are the devices made of?

In previous years, when the plumbing equipment market was not particularly diverse, the main elements of the system were made of ferrous metal.

In principle, such structures can properly serve for decades; their only drawback can be considered their unsightly appearance

The materials for the manufacture of the main elements of modern systems are most often:

• sanitary plastic;
• non-ferrous metals.

Polypropylene is affordable. It is famous for the fact that it does not rust and is resistant to water, “rich” in salt content. But in comparison with metal, when arranging a bathroom, plumbing plastic looks very budget-friendly.

And in bathrooms decorated in exquisite design - it’s completely ridiculous. You should choose plastic piping if you plan to install a screen under the bathtub.

In terms of design and excellent performance parameters, metal bindings are the leaders: although they are more expensive, they allow you to maintain the desired style

Among non-ferrous metals with high corrosion resistance, greatest distribution received: copper, bronze and brass. IN pure form they are generally not used.

Opening mechanisms, drain grates and other visible parts are coated with nickel or chromium using electroplating technology.

Metal strapping is advantageous in that it practically does not deteriorate over time; the service life of such products is more than 10 years. They need timely cleaning, which is not difficult to do by disassembling the washer connection.

Chrome parts are “vulnerable” to mechanical stress. The slightest scratch can ruin the protective nickel-plated film; over time, the coating will simply “wash off”.

Nickel parts are renowned for their durability. But they are significantly inferior to plastic in terms of resistance to mechanical stress. Bronze products are much harder and more durable.

The easiest way to visually determine what metal the system elements are made of is by the color of the metal:

• copper is a rather soft and ductile metal with a reddish tint;
• bronze is a durable alloy of copper and tin, which is closer to dark brown in color;
• brass - is a harder alloy of zinc and copper, colored yellowish.

In interiors decorated in classic style and retro, harnesses made of brass or bronze will look good

For modern styles Nickel-plated models with a shiny surface are more suitable.

What types of bathtub trims are there?

In all overflow systems described below, excess water is removed by gravity. The only difference is in the method of removing the plug from the drain hole located at the bottom of the bowl.

Not equipped with mechanisms

The simplest version of the overflow prevention system is a metal or plastic pipe, which is connected at one end to the bathtub drain.

The drain for collecting water in such structures is closed with a regular plug.

Chrome-plated grilles in combination with nickel-plated plugs look very presentable; the only thing that can spoil the “picture” is the hanging chain on which the cork is suspended

Simple siphons available for sale may differ in three parameters:

• connection element to the sewer system (rigid pipe or corrugation);
• pipe shape (rectangular or round);
• method of sealing connections (straight or conical gaskets).

External visible elements Any configuration of such systems often has a stylish design, due to which they carry a certain amount of aesthetics.

Semi-automatic drains

Devices operating on the semi-automatic principle are more convenient to use. The main feature of the design solution is that on the outer grille of the overflow pipe there is a control unit that regulates the tension of the cable attached to it.

The second end of the cable is held under the bathtub and connected through a rod on the cuff to the drain plug. The plug itself is tightly mounted into the system, acting as an integral part of it.

The control unit may have a different design, but in any case the overflow hole will be located behind it. The control block may look like:

• buttons;
• rotary ring;
• handles on the escutcheon.

The operating principle of the semi-automatic overflow drain system is somewhat reminiscent of the action of a hand brake, which is often equipped with a bicycle handlebar.

There is no need to immerse your hand in water to open the drain. Just turn the handle located on the side of the bathtub. It will activate the cable, when tensioned, the plug will lower, and when loosened, it will rise above the drain hole.

A significant disadvantage of such a semi-automatic system is that it is easy to break. But this applies more to low-quality products of Chinese counterfeits.

The easiest way to protect yourself from such trouble is to choose products from trusted manufacturers who guarantee the high quality of their products.

The operating principle of the semi-automatic overflow system is clearly presented in the video:

Automatic systems

The drain plug for the automatic system has a special design. It is equipped with a spring and a lock, making it easy to open and close when pressed.

While in the bathroom, to close the drain, just press the plug with your foot; pressing again will give reverse effect, automatically unlocking the plug

If you need to drain the water, but you are not in the bathroom, you will have to “dive” with your hand and press the stopper located at the bottom of the bowl.

Choosing an automatic model can be the best solution when connecting a bathtub in which, for some reason, it is not possible to install a mixer. In this case, the water supply pipes are connected directly to the overflow: hot water will flow into the bowl through the top hole.

Quite often, bathtubs for bathing children are equipped with an “automatic” system: by pressing the valve button, it is easy to empty the container without turning it over. When choosing which bath overflow drain is best, give preference to products from well-established manufacturers such as Grohe or Geberit.

Cheap automatic harnesses suffer from the fact that the plug in them often breaks, which can only be repaired by completely disassembling the harness.

Video: operating principle of the “automatic” drain system

How to install the system yourself?

The installation principle of both a simple siphon and a semi-automatic system is almost the same.

The system is installed after the bathtub is installed in a permanent place and leveled; the distance from the floor to the drain hole must be at least 15 cm

The installation technology includes a number of main stages:

• Removing the old siphon and thoroughly cleaning the connections and the inside of the pipe.
• Installation of the lower overflow. Place a gasket on the end of the lower overflow pipe and place it against the drain hole. At the same time, another pad is applied to the hole on top. A screw is inserted into it, carefully tightening it. The cone-shaped gasket is placed with the thin edge towards the end of the pipe, and the thick edge towards the nut. By installing the gasket the other way around, you will get a weak seal, leaving yourself open to leaks. After making sure that the connection is correct, hold the bottom overflow pipe with one hand, and tighten the screw with the other hand.
• Installation of the top overflow. The top overflow is attached in the same way. To facilitate the installation process to the drain neck, craftsmen recommend directing the pipe not vertically downwards, but moving it slightly to the side closer to you.
• Connection between drain and overflow. For this purpose, it is convenient to use a corrugated hose, which easily bends to the desired position. When using nuts to seal connections, do not forget to install gaskets on them, placing the thin ends towards the necks.
• Installation of a water seal. Before attaching the water seal to the neck, it is necessary to inspect the places for installing gaskets, “cleaning” with a file all casting defects and burrs. The water seal of all siphon models without exception is connected to the neck using a union nut, complemented by a conical or flat gasket.
• Connection of the siphon to the sewer system. Depending on the type of model, the connection is made directly into the socket, or through a sealing collar. All connections made are securely sealed. Since rubber gaskets have a short service life, all connections should be additionally processed for greater system reliability. silicone sealant.

If the size of the siphon outlet does not match the diameter of the sewer pipe, use adapters: for metal structures, fittings measuring 73 by 40, and for plastic ones - 40 by 50

Having connected the elements, all that remains is to check the quality of the assembly. To do this, cover the drain with a stopper, open cold water and fill the bath.

With the plug closed, inspect the drain and connections: if no leaks appear, then you can safely use the bathtub. The easiest way to detect leaks is to cover the floor with paper, on which drops of flowing water will quickly appear.

If a leak is detected, try tightening the nuts. When joining elements, follow the rule: if something is stretched and the thread “does not go,” it means it will leak.

One of the most common reasons is misalignment that occurs due to an incorrectly fitted rigid liner, or it interferes with normal installation polyurethane foam, used to insulate the bathtub.

If you follow the technology, there should be no difficulties with installing plumbing.

When working with plastic elements you should be extremely careful, because if you apply excessive pressure while tightening the screws, the housing may simply burst

During operation, semi-automatic and automatic overflow systems require maintenance. To maintain the original shine, external metal parts must be periodically treated with non-abrasive cleaning compounds or glass cleaners.

Internal structural elements should be inspected from time to time for leaks. If depressurization is detected, it is necessary to tighten the connection or change the sealing gaskets.

We don’t often think about how the most basic and familiar things in the house work, until we are faced with the question of repairing or replacing this thing. However, having understood the operating principle of this or that equipment, we can not only easily choose the most suitable option among dozens presented in stores, but also to extend its service life on your own.

Today we will look at the bathtub drain and overflow system, learn about its structure, operating principle and the available varieties.

A drain-overflow or piping is a system that allows water to drain from the bathtub into the sewer system and protects the bathtub from overflowing. In other words, the drain-overflow consists of two holes - in the bottom and wall of the bathtub, which are connected to each other and to the drainage system using a system of tubes and hoses. We will talk in more detail about the various modifications of drains and overflows below.

Traditional system

Traditional drain-overflow we have been observing in our apartments for many decades. This system allows you to fill the bathtub with water by closing the drain with a stopper on a chain. It consists of the following elements:

• Drain neck installed in a hole at the bottom of the bathtub and connected to the rest of the network using a direct water outlet;
• Overflow neck installed in the hole on the wall of the bathtub and connected to water supply network lateral drainage;
• Siphon– this is a curved pipe that acts as a shutter and prevents unpleasant odors from the sewer from entering the room;
• Connecting hose– this is a corrugated tube that serves to drain water from the overflow into the siphon;
• Outlet pipe– drains water from the siphon into the sewer system.

This standard set elements that make up a traditional drain-overflow system. Any person who does not have special knowledge in the field of plumbing can assemble and disassemble such a structure. The most common procedure that sooner or later almost every owner of a traditional drain and overflow will have to carry out is replacing the connecting parts of the structure, in other words, the sealing gaskets.

Semi-automatic

A later modification of the traditional drain and overflow are semi-automatic systems. These systems retained the drain siphon and drainage pipes from their predecessor, but otherwise the design has undergone some changes. It consists of:

• Control unit– a system that allows you to raise and lower the plug. This could be a button, a rotary ring, a handle or a valve;
• Traffic jams, which acts as a valve;
• Trosika, controlling the traffic jam.

Impact on the control unit: pressing the button and turning the valve activates the cable, which, when tensioned or loosened, raises or lowers the plug. In this design, the overflow hole is hidden behind the control unit. The external, visible elements of drains and overflows often have a beautiful and stylish design, which will certainly add a certain amount of aesthetics. Another advantage of this design is that raising and lowering the stopper becomes very convenient, so you don’t even have to bend over the bathtub and wet your hands.

The disadvantage of this system is its very relative reliability. If you save money and buy an inexpensive model, it will not serve you for very long, so it is better to opt for more expensive products or get by with a traditional drain-overflow system.

Machine

The automatic bathroom drain is not much different in structure and principle of operation from the designs we discussed above. The main innovation is a special automated plug valve. This plug is equipped with a spring with a lock. When pressed, the plug lowers and clogs the bathtub drain hole. When pressed again, it rises and the water drains. Bathtubs for bathing children are often equipped with an automatic drain. The presence of a valve button allows you to empty the bath without turning it over.

Automatic system - the most ergonomic of all. Control can be carried out not only with your hands, but also with your feet. In addition, the visible part of this structure takes up very little space. Buttons are available in a variety of designs - among them you can find brass, antique-style, or chrome-plated, high-tech style.

Disadvantage of an automatic drain system The problem is that replacing the valve button is very difficult. If it fails, you will have to replace the entire drain and overflow system. However, this problem can be avoided if you purchase a device from a reliable, trusted manufacturer that works only with high quality materials. We will talk about what materials are used in the production of bathtub drains and overflows in the next section.

Materials

For the manufacture of bathtub drains and overflows, plumbing plastic or metal is usually used.

Plastic the option is always cheaper, but not always of lower quality. Thus, plastic is less susceptible to corrosion, which can be caused by water and the impurities present in it. In addition, the plastic waste overflow is very easy to install.

The disadvantage of plastic models is their not entirely aesthetic appearance. Meanwhile, if a screen is provided under the bathtub, then the main part of the structure will remain invisible, so there is no need to worry about what impression the “insides” of your bathtub will make on guests.

In addition to plastic models, the market offers options for drain-overflow systems, made of ferrous or non-ferrous metal.Metal constructions They look very elegant and, at the same time, solid. They are indispensable if you have a bathtub that does not require a closing screen.

The most beautiful overflow plums are made from an alloy of non-ferrous metals - bronze, copper and brass. An additional coating is applied on top of the product, which determines its color - chrome, nickel and others. Metal structures are more expensive, but also stronger and more durable than plastic ones.

Manufacturers and prices

It's no secret that the highest quality plumbing fixtures, like many other groups of products, are produced in European countries. The drain-overflow system is no exception, so when purchasing it, special attention should be paid to European manufacturers.

The German company Kaiser took its first steps in the field of production of automatic drainage and overflow systems. Today, a drain and overflow from this manufacturer will cost you 2000-2500 rubles.

The Swiss company Geberit has also proven itself very well, engaged in the production of high-quality sanitary ware, including metal drain and overflow systems. The drain design of this company costs about 2000-4000 rubles, depending on the material from which it is made. You can be confident in the quality of the products of this company, since it provides a ten-year guarantee on its products.

The Grohe company, also German, produces high-quality overflow plums. The products of this company are quite expensive. So, a plastic drain-overflow costs on average 5,000-6,000 rubles.

Good drain and overflow systems are made from plastic. Italian company"Vega" and Czech "Alcaplast". The products of these companies can be purchased for 2000-3000 rubles.

DIY installation

Installing a drain and overflow is a responsible matter, since the tightness of the bathtub will largely depend on the quality of the work performed. However, despite the apparent complexity of the task, even a non-professional can cope with installing a drain and overflow on a bathtub.

Work can begin only after the bathtub is installed on the support, leveled and secured. It is necessary that the gap between the bathtub and the floor be at least 15 cm.

To begin with, attach a tee to the drain hole, not forgetting to lay the sealing gasket, and secure everything with a screw. Then attach a siphon to the outlet of the tee, secure the structure with a nut and seal with a conical rubber cuff. Next, take the overflow neck and attach it to the siphon outlet running on the side. At the end, attach the spout tube to the siphon and take it to the sewer. Don't forget about the gaskets at each stage!

After installation, be sure to check the entire system for leaks. Fill the tub and see if water droplets appear at the joints. If leaks are detected, tighten connections or use sealant.

Overflow drain systems do not require special care. If you have a semi-automatic or automatic system, periodically treat external metal parts with glass cleaners or special cleaning products to maintain the original shine. The internal parts of the structure must be periodically inspected for leaks. In case of depressurization, it is usually enough to change the sealing gaskets or tighten the connection.

The main cause of concern associated with the drain-overflow system is a clogged siphon. This happens when a lot of hair or dirt accumulates in the drain. In this situation, a plunger or a homemade device consisting of wire and a thin brush usually helps. You can also try various chemicals that contain alkali to remove blockages. These products can also be used to prevent blockages.

Now you know a little more about the principle of operation of the bathtub drain and overflow system and its varieties. We hope that our article will help you not to get confused in the store and make the right choice!

When choosing the desired system, it is necessary to take into account that each type has certain pros and cons.

Standard system.

Traditionally, this device is assembled from the following elements:

• drain neck located at the bottom of the bathtub;
• an overflow neck installed on its wall;
• siphon - curved plastic tube, acting as a water seal and creating a good barrier to penetration from sewer system unpleasant odors in the room;
• connecting hose - a corrugated tube connecting the bath siphon with the overflow;
• spout pipe - which drains water into the sewer from the siphon.

The standard system makes it possible to draw water into the bathroom by closing the drain hole with a plug on a chain.

Semi-automatic system.

In such devices, only the following remain from the traditional system:

• bath siphon;
• outlet pipes. The remaining elements have been replaced with new ones:
• control unit - responsible for raising and lowering the plug, available in the form of a button, rotary ring, handle;
• cable that controls the drain plug.

In the design of such a device, the control unit beautifully closes the overflow hole. A visible bathtub drain often has a stylish and exclusive design.

The main advantage of such a system is the convenient raising and lowering of the cork without necessarily putting your hands in the water. The disadvantage of semi-automatic systems is their rather poor reliability, especially on inexpensive models.

Automatic system.

The main difference between such devices is the design of an automated valve button equipped with a locking spring. When you press it for the first time, the plug drops and blocks the drain hole. When pressed again, it rises, opening the drain hole.

Main advantage automatic devices- it becomes possible to control not only with your hands, but with the help of your legs. The disadvantage of such models is the rather complicated repair of the valve button. This problem can be avoided by purchasing a device from a reliable, trusted company.

Purchasing in store new bath, sellers will definitely ask what kind of bath siphon you need - automatic or semi-automatic. And many are puzzled by such a proposal, because in such a simple device It seems that nothing can be automated and impossible.

Indeed, water flows spontaneously into the bend of a pipe or drain element of a special design. But now we are not talking about the principle of operation of the siphon, but about the convenience of controlling it.

New siphon designs

Let's figure out together what a semi-automatic bath siphon is, and what is its advantage over a regular one budget solution from plastic pipes.

Recycling the drain assembly and plug

The first innovation is the abandonment of the traditional cork design. Today in fashion:

• Plugs built into the drain hole;
• Controlled by remote crane;
• Which are often combined with a drain-overflow grate.

Installation method

The most important thing for consumers is that the siphon installation process has not become more complicated. And puzzle over how to install a siphon on a bathtub new design you will not have to. Everything is the same as before:

• The assembled drain assembly (with a plug inside) is screwed under the bathtub;
• The drain-overflow is also installed in its place;
• A drainage pipe is connected to the siphon tee;
• A control cable is attached to the siphon actuator;
• A control valve is installed in place of the drain-overflow grid.

Differences between an automatic and a semi-automatic

Having figured out how a classic siphon with drain differs from modern analogues for a bathtub, it’s time to decide on the choice of option for own apartment. And remember the store seller’s question - automatic or semi-automatic?:

• A semi-automatic siphon is a device with a built-in plug, controlled by a tap located at the overflow drain neck;
• Automatic siphon - the same constructive solution, but at the same time independently opening the plug when the water flow through the overflow increases.

Structurally, these devices differ from each other:

• Another drain plug drive system;
• Another system for supplying water to the bath.

For reference: an automatic siphon is designed to protect the bathtub from overflow. In addition, you can control the plug not only with your hands, but also by simply pressing it, for example, with your foot.

What to give preference

The water supply is also combined with the drain and overflow. Thanks to a built-in unit that detects water pressure, the plug automatically opens when the bath is overfilled.

In addition, modern siphons differ in materials. Companies such as:

use high-quality brass and bronze to produce top models of siphons. It gives not only a noble look to the bathroom, but also lasts much longer.

Tip: if your bathtub is made of metal or acrylic and is no different large sizes, then you shouldn’t overpay for a LUXURY class product - a semi-automatic siphon will be enough.

Conclusions: We hope that we have clarified for you the differences between the bath siphons offered in the store. And you can make the right choice by purchasing the one that best suits your needs. technical features plumbing fixture.

Bath siphon automatic semi-automatic differences how to install, Construction portal

bath siphon automatic semi-automatic differences how to install

Bathtub overflow drain - semi-automatic and automatic

Anyone who has been involved in arranging a room for water procedures on their own knows how many little things and additional accessories have to be purchased for this relatively small room. In addition to faucets, a washbasin and the water tank itself, it is very important not to forget and buy a high-quality, perhaps even automatic drain, overflow for the bathtub. What is it, what is the purpose of this design and what selection criteria are the main ones when purchasing it - let’s try to figure it out together.

Bathroom drain

Bathroom drain - what is it and what is it for? It is quite clear that direct use of the bath requires the mandatory removal of used and dirty water into sewer drains. It is this important function that the drain structure performs, so its installation is extremely necessary immediately after installing the bowl itself.

It is impossible to drain the water from the bathroom using a regular pipe or flexible hose, and not because this is a rather labor-intensive process - the use of such improvised means will not protect the room from the penetration of unpleasant odors from the bathroom. sewer pipes, as this will be done by a special drain. Its design has a special seal - a siphon, which prevents the penetration of sewer gases.

In addition to the siphon, the drain kit includes an overflow - a special device that allows you to drain used water through the top hole in the container. Overflow is necessary in case the bowl overflows with water and it is impossible for it to exit through the drain.

Important! You shouldn’t fully expect that a flood will be avoided - as practice shows, the device simply won’t be able to cope with high water pressure.

In the assortment of modern plumbing stores you can find the most various types this useful device. What types of products are there?

Bathroom drains and overflows - types and features

The most simple view The design is considered to be a standard drain-overflow: water is drawn into the bathroom with the plug closed, and drained, accordingly, with the plug open. These are the kind of drains that were previously installed in any bathtub and were found in almost every apartment.

There are also more original products - they are made for bathtubs of non-standard models, but automatic and semi-automatic overflow drains are in greatest demand, and we will talk about them in more detail.

Semi-automatic drain – design features and advantages

The semi-automatic drain for the bathroom differs from other types of this useful mechanism in that the plug closing the lower drain hole is opened using a cable that connects the drain and overflow blocks of the device. Thus, when using the bathtub, it is enough to slightly turn the overflow cover and the drain will open (or vice versa close).

A semi-automatic machine is very convenient, because now, in order to start drawing water into the bowl, you don’t have to bend over each time and close the drain hole with a stopper. In addition, a semi-automatic bath overflow drain visually looks more attractive than simplified design analogues. A semi-automatic drain in the bathroom has only one drawback: with intensive use of the device, the cable may begin to get stuck and jam. There are models in which the cable is located outside rather than inside the structure, but in appearance they are significantly inferior to models with a hidden cable.

Advice: when choosing a semi-automatic bathtub drain, do not save money and buy a more expensive model made from truly quality materials.

Automatic drain - what are the advantages of the mechanism?

The automatic bathtub drain and overflow works as follows: to open the drain hole, you need to press the button located on the plug and a special mechanism will open or close the hole. Visually, the automatic drain overflow also looks very aesthetically pleasing, but to release or draw water you will have to bend over - after all, the open/close button is always located at the bottom of the structure.

There are two types of automatic bath drain: regular and with water collection functionality. Such models will become good choice for baths where there is no possibility rational placement mixer The design of this type includes special pipes for the water supply, which are connected to the overflow during installation. The bathtub is filled through the top hole and the advantage of this option is that it becomes impossible to flood the room with water - if there is excess water, the overflow valve automatically turns off and water flow stops.

If you have chosen automatic for your bath drain mechanism– buy a product from a reliable manufacturer with a good reputation. Poor-quality siphons quickly fail, and such a system will have to be replaced entirely; the machine does not provide for repairs in parts.

The material from which they are made is also important for these mechanisms. Which bathtub drain is best to buy - metal or plastic?

Modern overflow drain mechanisms can be made of ferrous or non-ferrous metal and plastic. Let's look at the features of each subgroup:

• Structures made of ferrous metal. Such drain mechanisms are distinguished by high strength and longevity in operation, but they cannot boast of external attractiveness. Such products must be additionally chromed or nickel plated. The purpose of such a coating is to give greater corrosion resistance mechanism;
• Mechanisms made of bronze, brass and copper are the more common variety. Considered the most reliable drainage devices made of bronze. The advantages of this type of product also include ease of assembly and disassembly and high corrosion resistance;
• Polypropylene structures for overflow drainage look the most aesthetically pleasing, but are noticeably inferior in reliability to metal ones. In addition, polypropylene drains do not look good with expensive designer bathtub models - plastic looks too cheap against the backdrop of luxury ceramics or natural stone.

Tip: It’s easy to determine the base material of the structure - just carefully examine the tube connecting the drain and overflow blocks. For a bronze mechanism it will have a dark brown color, for a brass mechanism it will be yellow, and for copper it will have a characteristic red tint.

How to install the drain mechanism yourself?

First, you should carefully read the instructions and all documentation included with the kit: all installation recommendations must be strictly followed, otherwise the mechanism will not work correctly or will not work at all.

An important installation point is that the hole for the drain should not be lower than fifteen centimeters from the surface on which the bathtub itself is installed.

Pay attention to the stability of the container - the bathtub should not wobble, especially for acrylic and metal bowls, which have little weight and, as a result, poor stability.

Then a special tee should be attached to the decorative grate of the drain hole. The connection is carefully treated with sealant or additionally covered with gasket material. The siphon is mounted on the lower end of the tee, and a connecting tube is attached to its side.

The next stage of installation work is to attach an angle to the tee, which will connect the mechanism to the sewer. Do not forget that each connection in the installation of an overflow drain requires treatment with a sealant and mandatory inspection before drawing water. To do this, you need to fill the bowl with a little water and then perform a test drain. If there is no water leakage, the mechanism is installed correctly and is ready for operation.

Metal drains should be installed carefully and without sudden movements - they are not very flexible and can burst if bent too much.

Conclusion

In conclusion, useful advice from experts: if after installing the bowl you plan to cover it with facing material, be sure to leave a special hatch or door - the drain mechanism of even the most reputable company can fail and you will need access to it for replacement or partial repair.

Bath overflow drain, semi-automatic, automatic - advantages and disadvantages

Bathtub overflow drain. Automatic and semi-automatic. Advantages and disadvantages of drains. Self-installation and purchasing tips.

Bathtub drain and overflow: how to choose and replace

It would seem that what could be simpler than a regular siphon for draining “waste” water into the sewer? This is a curved plastic or metal tube that connects the bathtub outlet to the drainage network. However, designers and constructors felt that modern plumbing needs something more stylish and comfortable.

As a result, an automatic bathtub overflow was born. Due to rather radical changes in the design, the appearance of both the parts that are mounted in the bathtub outlet and the part that is installed in its end part has also become different. What has changed, how it works, and how to choose suitable model new device - later in this article.

One of the models of semi-automatic overflow plug

A traditional bathtub drain consists of the following elements:

• Siphon
• Exhaust intake grille
• Overflow receiver
• Overflow receiver grids
• Spout tube
• Branch for connection to sewerage

By the way, there is also a children's bathtub with a drain on sale. The operating principle of this device is very simple: a duplicate outlet is installed in the end wall of the bathtub at a certain height from its top (usually 50 mm from the edge of the bathtub to the center of the hole).

Important information! A synonym that is sometimes used to refer to bath drains is the term “piping,” which not everyone knows about.

In this regard, when purchasing a complete set yourself, misunderstandings can sometimes arise.

A receiving block is attached to it on the outside, and a decorative grille of one kind or another is attached to it on the inside. Receiving unit using a spout tube, it is connected to the lower outlet pipe, in front of the bath siphon body (the latter, by the way, has recently been made monolithic, but there are also models with a collapsible settling bowl).

If for some reason the bathtub begins to overflow, the water, having reached the lower overflow level, flows through the spout into the outlet, and then into the sewer. Such a simple and unpretentious bathtub drainage device nevertheless provides virtually guaranteed prevention against flooding of the bathroom floor and other related troubles.

These products were previously made almost exclusively from plastic. Now there are many metal models - made of copper, bronze, brass or chrome steel. The Viega bath overflow has proven itself very well in this market, as it optimally combines reasonable price and reliability.

Automatic drain

One of the pioneers in the production of automatic drains was the German company Kaiser. The outflow tube in this device, as well as the overflow receiver, are no different from the old designs. The whole point of the innovation is in the special design of the plug that covers the outlet hole.

It has a special spring with a lock. With this device, after pressing, the button plug is either recessed, blocking the exit of water, or, on the contrary, opens, allowing water to go into the sewer.

This release is quite convenient after taking a bath - just press the button with your foot, for example, and the water will start pouring out. Accordingly, after the second press, the water in the bathroom does not drain.

Automatic drain system

A children's bathtub with a drain can also be equipped with such a system; here it is very practical - you do not need to turn the entire bathtub over, just press a button and wait for the water to flow out. In ordinary bathrooms, the use of such a device can only be justified by aesthetic considerations and some convenience when taking water procedures.

Otherwise, it is no different from a regular cork, except that the increased complexity in low-quality products often leads to breakdowns. It is almost impossible to replace or repair such a plug, which forces you to completely change the entire piping.

The most popular materials from which such a bathtub overflow is made are bronze and brass, but there are also plastic samples. However, experts strongly discourage the use of plastic products - their tendency to breakage is even higher.

Semi-automatic drainage systems

The design of a semi-automatic is very similar to an automatic.

It has the following components:

Well, and, of course, like any drain - a siphon with a discharge tube. The control unit is available in several basic versions.

Basic design of a semi-automatic device

• Swivel ring around the decorative trim (like the Roca bathtub overflow, for example)
• Full grip handle
• Special valve on the cover
• Button

In any of the options, the overflow hole itself is hidden at the bottom of the entire block. With a certain action - turning or pressing, the force is transmitted through the cable to the lower valve plug. In most cases, the plug is attached to the release cuff body on one side using a rod.

In one way or another, the rod is connected to the cable, and when the latter is tensioned or released, it opens or closes the drain hole, respectively. This allows you to regulate the supply and drainage of water, whether in the bathtub or outside it, without bending over, which is very convenient.

An additional plus is the ability to open the stopper when the bath is running without putting your hand into the water - it may be too cold or hot.

One of the control mechanism options

It has a different device and control cable - in some models it runs outside the overflow hose, in others it runs inside it.

The second solution is more aesthetically pleasing, especially in cases where the walls of the bathtub are open. However, it also has its drawbacks - if the cable gets stuck or it breaks, repair is almost impossible; the entire bathroom drain will need to be replaced.

Whereas in the model with external location You can fix the cable without any problems. It is worth paying special attention to the installation of metal drains. Compared to plastic, metal has relatively little flexibility and is more fragile.

Therefore, if installed incorrectly, it can be damaged - and this, again, will result in the purchase of a new set. Therefore, all processes must be performed exactly as the instructions indicate.

If you are going to cover the outside of the bathtub body with any cladding, be sure to leave a hatch or similar opening for maintenance and repair of the drain and water supply pipes.

No matter how reliable these products are.

Sometimes they break too. If an accident occurs on a tightly sealed device, in addition to the device itself, cosmetic repairs of the entire bathroom may be required.

However, the fact that such a solution is very convenient does not mean that you can ignore the quality and brand of the manufacturer. After all, the device of a semi-automatic device is quite fragile, and when taking a shower with the plug open, many accidentally catch it and break the low-quality product.

Therefore, if the water does not drain well in the bathroom, it is worth checking whether everything is in order with the plug, since the siphon itself breaks and becomes clogged extremely rarely. Perhaps the drain holes in it are simply clogged and the bath needs to be cleaned.

In general, for those seeking additional comfort, water release systems with various additional functions are certainly useful.

But at the same time, common sense should not be neglected: it is worth purchasing high-quality components, such as a Geberit or Vega bath overflow drain, installing the parts correctly, and handling the mechanics carefully during subsequent operation. Then automation will actually be useful and not become a source of problems.

title=” Bathtub overflow drain: instructions for replacing an automatic and semi-automatic device from kaiser, gosa, geberit”] 248) Bath overflow drain: instructions for replacing an automatic and semi-automatic device from companies such as kaiser, gosa, geberit, viega, and also what do the water in the children's bathtub does not drain.

Choosing the best drain and overflow system for a bathtub

When installing plumbing equipment It is important to make the right choice in favor of a specific model. This article will focus on the bathtub drain-overflow system. To figure out which siphon is better, you should carefully study the pros and cons of each type of drainage system. A correctly selected siphon model will add even more comfort to water procedures.

Drain-overflow system: technical features

The piping, also known as the drain-overflow system, is a structure consisting of pipes hermetically connected to each other. It is she who provides the withdrawal waste water into the sewer and also protects the bath from overflowing.

The drain-overflow system must be equipped with a siphon, which prevents the appearance of an unpleasant odor in the bathroom. Water from the overflow hole enters the sewer using an auxiliary pipe. The most commonly used is a corrugated tube that can be stretched to the right size and lead it to the drain, bending it in any direction.

Advice! When choosing drain system, you need to pay attention to all the external parts that frame the openings of the bathtub. In a quality product they are made from of stainless steel.

When buying a drainage system for a bathtub, you should definitely pay attention to the quality of the parts. It is also important to check the presence of seals and cuffs; the absence of one of them will certainly lead to a flood after the first filling of the bath. Seals are necessary to ensure the tightness of the structure and prevent leakage.

On this moment exists big choice harnesses From simple plastic siphons to chromed metal structures with special ornaments. Modern technologies allow you to satisfy the requirements of the most capricious customers. Drain-overflow systems are divided into:

• a simple siphon equipped with a stopper;
• semi-automatic system;
• automatic drain-overflow system;
• filling machine.

Each of these systems has its own advantages and disadvantages. And in order to decide which bathtub drain and overflow is better, it is necessary to consider each design in more detail.

Disadvantages and advantages of the automatic system

An automatic drain and overflow system for a bathtub is one of the most complex designs. In its structure, it is not much different from any other. Main feature such a piping is to equip its drain part with a “click-clack” valve.

The system is very easy to use and does not require any additional devices: swing arms or locking plugs. With a light press, the user closes the drain hole, and repeated action will allow the water to flow into the sewer pipe. It is very convenient to control the valve with your foot while directly in the bath. You just need to step on it while standing in the shower.

However, this system also has a number of disadvantages; it should be noted that the automatic siphon is:

1. Expensive pleasure. A good quality automatic system will cost several times more than a conventional mechanical siphon with a bathtub stopper. That is why the choice often falls on cheaper models.
2. Frequent breakdowns. A system with automatic shut-off of the drain hole, made of insufficiently high-quality materials, can quickly fail. When purchasing such a design, you should pay special attention to the company and country of the manufacturer. German manufacturers have proven themselves best: they carefully monitor the quality of the product in order to maintain the brand.

You should also know that if the spring that holds the valve and operates it (the most vulnerable part of the automatic system) fails, the entire structure must be replaced.

Semi-automatic siphon and its best aspects

The semi-automatic drain-overflow system, despite its ease of use, is quite complex design. In addition to the standard hermetically connected pipes for draining waste water and an overflow system, models of this type are equipped with a shut-off valve, which is actuated using a lever mounted on the overflow hole. It is made in the form of a decorative handle or valve.

Operating such a drainage system is quite simple. The user turns the control lever 90° and the shut-off rod rises, opening the drain hole, and if you turn the handle in the opposite direction, the rod lowers, making it possible to fill the bath with water.

The system works thanks to an auxiliary cable, the tension of which allows the plug to rise and fall. The design of the valve control handle can be varied.

The overflow device in such systems is hidden under the control knob drain structure. This makes the harness more aesthetically pleasing and stylish look. Also, one of the advantages of such a system is ease of use. By turning the handle located at the top of the bathtub, the user does not have to wet his hands or once again bend down to the bottom of the bathtub.

And if we talk about the disadvantages of such a system, it should be pointed out that the design is quite complex and has a lot of connecting and moving parts, and therefore attention should be paid only to models from responsible and conscientious manufacturers who have already proven themselves in the plumbing fittings market.

There is a type of semi-automatic drain-overflow system that allows you to fill the bathtub. This is the most complex of all automatic and semi-automatic harnesses. To install such a structure, it is necessary to supply water pipes to it. Using this type of piping, you can eliminate the installation of a mixer for filling the bathtub.

Economical system. Cheap and easy.

Most simple design The bathroom drainage system is a mechanical drain-overflow system. There are no moving parts or levers and therefore it is the most reliable of all other types of harness.

The system consists of several main parts:

1. Drain neck. Placed at the bottom of the bathtub, connected to the siphon.
2. Overflow pipe. Mounted on the overflow hole.
3. Corrugated tube. With its help, the overflow pipe and the main part of the system are connected.
4. Siphon. A U-shaped pipe that acts as a shutter. Prevents the spread of odors from the sewer.
5. Spout pipe. Ensures the passage of wastewater into the sewerage system. Such a pipe can be a corrugated hose or a straight pipe, depending on the location of the sewer outlet.
6. A plug blocking the drain hole. Most often it is connected by a chain to a grille installed on the overflow.

This system is very easy to assemble and install; anyone can handle it, even without in-depth knowledge in the plumbing industry. As a rule, failure of such a siphon is caused by wear of the sealing joints.

Advice! To increase the service life of sealing cuffs and gaskets, they can be pre-lubricated with silicone grease.

Plastic or metal?

Very often, buyers ask the question: “What material should the drain-overflow system be made of?” Currently, manufacturers use several basic materials for the manufacture of strapping:

• plastic;
• black metal with chrome plated;
• non-ferrous metal;
• stainless steel.

Plastic siphons have the most favorable cost and a relatively long service life. But their aesthetic appearance leaves much to be desired. The same can be said about ferrous metal systems. Manufacturing companies are currently increasingly resorting to the use of such raw materials.

Non-ferrous metal and stainless steel are the most expensive materials, but they are practically not subject to corrosion. Products made from such raw materials have a special style and can complement general form in decorating a bathroom. For example, if the design idea was for a retro-style bathroom, then a siphon made of processed brass in an open bathroom (without using a decorative screen) will look very organic and stylish.

When purchasing a bathroom fixture, always pay attention to the quality and brand of the manufacturer. These are the determining factors in choosing a drainage system. This is especially true for bathtubs covered with decorative panels and screens. The user’s desire is to look under the bathtub as little as possible, so it is better to install the highest quality construction, and thus insure yourself against leaks for a long time.

Which bathtub drain and overflow is better to choose?

This article will focus on the bathtub drain-overflow system. To figure out which siphon is better, you should carefully study the pros and cons of each type of drainage system.

No bathtub can do without a drain-overflow system. This device, unnoticeable in appearance, performs whole line important functions. And not only the convenience of using the bathroom, but also the safety of its operation depends on the correct choice and quality of installation.

This simple design, in principle, will prevent the bathroom from overflowing if the owners are not careful. Excess water will be flushed down the drain and will not end up on the floor and will not spoil flooring and what’s more, it won’t spill on the heads of the neighbors living on the floor below. And modern models of such systems also allow you to take a bath with maximum comfort, while at the same time becoming some decorative decoration. So, if you plan to install a new bathtub or replace an old siphon that has expired, it makes sense to familiarize yourself with the information offered: bathtub overflow drain - device, types, installation rules.

Functions of the drain-overflow system, offered varieties

Among specialists, the drain-overflow system is often called more simply - bathtub plumbing. This doesn't change the essence. And to begin with, what tasks are assigned to this system?

• Firstly, the sealed frame of the drain and overflow holes in the bathtub, that is, the water from them, thanks to the existing seals, does not spill onto the floor, but is completely directed first into the system pipes, and from them into the sewer pipe.
• Secondly, due to the presence of a siphon, a water seal is created that prevents the penetration of unpleasant “odors” of the sewer into the room.
• Thirdly, it allows you to close the drain hole of the bathtub in one way or another while filling it.
• Fourthly, it will not allow overflow if the process of filling the bathtub for some reason has fallen out of the user’s field of attention. Almost all bathtubs are equipped with two holes - one of them is traditionally located in the bottom part, and the second on the wall at the maximum filling level. These outlets are connected to each other by a pipe or flexible hose before connecting to the sewer main. That is, if the water supplied to the bathtub reaches the level of the drain hole, it simply begins to be discharged through it into the sewer.
• Fifthly, in many models, some external parts of the system also represent a certain decorative value.

We can also add that there are drain-overflow systems in which the overflow unit is also combined with a water supply system to the bathtub. How convenient it is is difficult to judge without trying it, but some people like it.

Available in specialized stores wide choose drain-overflow systems made of different materials. This variety ensures that even the most demanding customers will be able to find a suitable option for their bathtub.

Prices for siphon overflow WIRQUIN

Overflow siphon WIRQUIN

Despite the variety of models offered, each of them has common nodes:

1 – neck installed in the lower drain hole of the bathtub. It requires reliable sealing during installation (as, indeed, any other components of the system), for which the necessary seals are always included in the kit. As a rule, it is equipped with a grill that prevents large debris from entering the siphon.

2 – a siphon that creates a water seal against the penetration of odors from the sewer. Due to the traditional lack of space under the bathtub, it usually has very compact dimensions, often having a flat shape at the bottom. At the same time, this knot, one might say, “ties” all the elements of the drain and overflow with each other and the sewer pipe.

By the way, the volume of the siphon matters, since a water seal that is too “miniature” may not cope with its task. It is recommended to choose models in which the siphon holds at least 300 ml of water.

3 – pipe for connection to the sewer pipe. As a rule, it has a cylindrical section at the end, ideally sized for insertion into the socket of a standard sewer pipe with a diameter of 50 mm.

4 – overflow neck, installed on the top hole of the bathtub. Equipped with an angular pipe, which must be directed downward during installation. In many models, this pipe is already “by default” connected to the pipe going to the siphon.

5 – pipe connecting the drain and overflow necks. It can be rigid or corrugated, allowing configuration changes both in length and in bend.

6 – a device of varying degrees of complexity, designed to close the drain neck when filling the bath.

By the way, it is precisely by this criterion, by the mechanism for closing the drain neck, that drain-overflow systems are classified into several groups.

• Systems with simple mechanical overlap.
• Semi-automatic systems.
• The so-called automatic systems.

It should be noted that the names of some systems still have a significant degree of convention and are not entirely correct. But they have caught on and are used by both manufacturers and sellers of products. And in order to understand what each of the groups is, it makes sense to consider them in more detail, determine their advantages and disadvantages.

Features of simple mechanical systems

There is no trickery to the design of the mechanical system. There is an open overflow neck located on the wall of the bathtub. Sometimes it can be covered with a decorative overlay that does not reduce the overflow capacity and does not perform any other functions.

And the drain neck closes when necessary to fill the bath with a regular plastic or rubber stopper included in the delivery set. Usually there is also a chain or cord with which this plug is tied to the eye of the overflow neck - just so that it does not get lost.

This is still the most common version of the system that can be found everywhere. It is clear that “work management” comes down to the fact that when filling the bathtub with water, you must manually close the drain neck with a plug, and when emptying, the plug is simply pulled out of the drain.

The advantages of such mechanical systems drainage and overflow include the following points:

• Affordable kit prices.
• A simple algorithm for assembling and installing the system.
• Long service life.
• High reliability of the design - there is simply nothing to break here (this refers specifically to closing the drain).

There are few shortcomings, and even those can be considered rather conditional. So, some people don’t like the too “simple” look of the system, they say, it’s “yesterday”. Some complain about the inconvenience of controlling the supply and drainage of water while taking a bath. Another disadvantage is that sometimes the cork tends to get untied from the lace or chain and get lost (perhaps the reason for this is children’s playful hands). But purchasing a new plug for a ridiculous price is not difficult.

By the way, pay attention to one nuance, clearly visible in the illustration above. The siphon of the system may have an additional pipe for connecting a drain from another plumbing fixture. For example, if there is a washbasin next to the bathroom, then the drain from the sink can be directed exactly here, so as not to “produce” tees on the sewer pipe. Naturally, if there is no such need, then you should not purchase a siphon with an additional input. Or, if this input is not used, it should be securely plugged.

This version of the siphon design can be found on any of the drain-overflow systems under consideration.

Features of semi-automatic drain-overflow systems

The semi-automatic drain-overflow system is a more modern device, equipped with additional devices that increase the level of comfort in using plumbing equipment.

General design system is similar mechanical version, but the following elements are additionally built into it:

• A kind of “control unit” that allows you to lower and raise the main drain plug. The “working element” itself can be a rotary handwheel, a button, a valve or a handle mounted on the overflow neck. As a rule, these elements will have a certain decorative effect.
• A cable or flexible shaft connecting this “control unit” and the mechanism for closing the drain plug. This element can be located outside or inside the pipe connecting the drain and overflow necks. A system with cables inside a tube would seem to look more aesthetically pleasing, however, its repair is much more difficult. Yes, aesthetics are not required here, since this unit of the system is not in plain sight anyway.
• A plug installed on the main drain hole that acts as a valve.
• A mechanism that converts the force of a cable or torque, created by the flexible shaft, into the translational movement of the plug to the extreme upper and lower positions.

The system works as follows:

• Turning the handwheel (handle) or pressing a button leads to loosening or tensioning of the cable, or to turning the flexible shaft.
• The transmitted force is converted into movement of a rocker arm or pusher located under the drain plug. The plug itself has a vertical rod in the lower part, which centers its position, since it fits into the guide sleeve of the drain neck, and its lower end rests against the swinging part of the rocker arm (pusher). Typically, this stem is equipped with a screw that allows you to change the overall length of the stem when adjusting the system.

If by turning the flywheel the pusher moves to the lower position, the drain plug falls freely onto the neck. Thanks to the precise fit and the presence of a seal, it is pressed tightly into its “saddle” by the pressure of the collected water, thereby ensuring an airtight shutoff of the drain.

When the flywheel is turned to another position, the pusher rises and transmits force to the rod, which, in turn, overcoming the water pressure, lifts the plug above the “saddle,” opening the way for water to drain from the bath.

This system also has its advantages and disadvantages, which you need to have information about.

So, the advantages of this design include the following points:

• The semi-automatic system allows you, without bending down to the bottom of the bathtub, by turning the handle or pressing a button to close or open the main drain plug.
• The semi-automatic device has a more aesthetic appearance than the traditional drain-overflow device.

The disadvantages of this system include the following points:

• If the device is used too intensively, the cable may eventually begin to jam and get stuck.
• If the water supply system uses hard water, then a limescale deposit may form on the rotating components, which will first impede their movement, and then may lead to jamming and breakdown.

It is clear that any mechanical link with a rotation unit always becomes an additional vulnerable point. The main types of breakdowns of such systems are the following defects:

• Damage or severe wear of the control cable (flexible shaft), up to its breaking or breaking.
• Mechanical damage (wear) of the plug, making it impossible to draw water into the bath. This may be abrasion of the o-ring or deformation of the valve part, that is, the plug does not provide a tight seal when closed. The rod may also become bent, causing it to not fit tightly to the seat. With any of these options, water will leak through the drain.
• Breakage of the control handle (flywheel) due to limescale deposits or even due to the application of excessive rotational forces.

As you can see, there are many vulnerabilities. Therefore, when choosing a semi-automatic drain-overflow system, it is worth purchasing a truly high-quality model produced by a company that has gained a reputation for reliability and provides guarantees for its products.

Automatic systems

To tell the truth, there is, of course, no talk of automation here. To close or open the drain you still have to apply mechanical force. The only thing is that it is not transmitted through some kind of intermediate mechanism, but ends up directly on the drain plug.

That is, this plug is equipped with a spring and a fixation system, and works on the “click-cluck” principle. The entire mechanism is located directly in the drain body.

To close the main drain plug, simply press it lightly with your hand or toes. It will move down and lock in this position. The plug is opened in a similar manner - pressing it will remove it from the stopper and lift it under the action of a spring to the upper position - the drain is open. Therefore, you can control the filling of the bathtub while lying in it and without getting up from your seat.

The advantages of such a drain-overflow system include the following qualities:

• Comfortable to use.
• An elegant appearance that becomes a decorative element for the bath.
• The absence of a transmission mechanism reduces the structure's vulnerability to breakdown or failure.

However, despite the modernity of the design and its ease of use, it also has its drawbacks:

• To release water from a fully filled bath, willy-nilly you will have to roll up your sleeve to press the drain plug button
• If the valve button fails, the entire drain-overflow system will have to be replaced.
• Failures of the clamp with the plug spring are also noted. True, these parts can be replaced if you purchase them for models from the same manufacturer.
• The small diameter of the drain hole, traditional for such models, can also be attributed to the “disadvantages” of the design, since the water leaves the bath rather slowly.

The likelihood of these breakdown problems occurring can be reduced by purchasing a quality product from a proven, reliable manufacturer who makes products only from high-quality materials.

There are also systems on sale that combine automatic drainage and overflow with a water collection function. The tap is located on the overflow neck. It turns out to be a kind of hybrid of a drain-overflow system with a mixer.

Such models are especially convenient in cases where it is not possible to conveniently position the mixer. For example, if the bathtub in the bathroom is installed far from the walls of the room.

But this case still applies to a greater extent specifically to mixers, since the system will require a rather complex connection to water pipes. And it will not be considered in the context of this publication.

Materials for manufacturing drain-overflow systems

For the production of drain-overflow systems, materials with certain qualities are used. For example, these include resistance to corrosion, temperature changes, as well as certain relevant hygienic standards.

Until recently, the main material used for manufacturing systems was predominantly ferrous metal - steel and cast iron, the main disadvantage of which is its unsightly appearance and susceptibility to corrosion. Therefore, today more modern materials. However, ferrous metal products are still found.

• Iron alloys (steel and cast iron) are reliable and durable materials. Although products made from it quickly lose their original aesthetic appearance, they are used properly for a long time. The susceptibility to corrosion and the considerable weight of such products are among their main disadvantages. Threaded connections Over time, they can become so stuck that they cannot be disassembled. At present, if such systems are found, then, apparently, they are from old stocks produced many years ago. They are not popular.
• In many systems, regardless of the main material used for making pipes, siphons, necks, external parts in contact with water are made of stainless steel. This option is optimal, better than just steel parts with a nickel or chrome plated coating - this is worth paying attention to when choosing a system.
• Copper and alloys based on it are significantly superior to plastic products in strength and durability. Devices made from these metals often have a protective coating of nickel or chromium applied galvanic method. Nickel is an excellent, reliable and durable coating; it can be distinguished by the bluish tint of the parts. With proper care, devices made of non-ferrous metals will last for decades.

For visual identification specific type metal production, it is necessary to thoroughly inspect the lower and upper necks and pipes.

Copper products have a red tint, and they are somewhat inferior in strength to other metals.

Brass (an alloy of copper and zinc) has higher strength characteristics. This alloy can be identified by its light yellow tint.

Bronze (an alloy of copper with tin or other metals except zinc and nickel) is even stronger than brass, and in terms of resistance to various influences it can be compared with steel products. Bronze has a dark tint, even close to brown.

It should be noted that any non-ferrous metal is excellent for the production of plumbing accessories. And since the overflow drain system, by definition, will not experience any serious mechanical and baric loads, they are made of copper alloys and carefully installed and will last a very long time.

• Plastic drain-overflow systems have the most affordable price. They are great for any bath and have high degree versatility. With proper installation, careful operation and regular maintenance of the system, plastic products can last a long time.

If, of course, they are of high quality. Since on sale there are often systems with molding defects in plastic parts, with deformations, with poorly fitted threads in connections, made from brittle polymers or that acquire this fragility from contact with hot or cold water. Moreover, it can be difficult to predict this in advance. Strength indicators are of particular importance for parts that experience increased mechanical loads, that is, in semi-automatic systems, they transmit force to close and open the plug. It is they who most often become the “Achilles heel” of the kit.

That is, another argument to purchase products only from trusted manufacturers.

Criteria for selecting systems

When choosing a drain-overflow system, you should focus not only on the appearance of the structure, but also on other more important criteria, which include the following points:

• Manufacturer of the product. To be sure of the reliability of the device, it is recommended to choose products from trusted manufacturers. To do this, it is best to consult in advance the reviews of users who have already installed one or another option and have been using it for more than one year.
• System cost. With small budget possibilities the best option will plastic equipment with mechanical drain design. Automatic and semi-automatic systems are suitable for bathrooms designed in a certain style, as well as for those users who prefer comfortable conditions operation.
• Determination of the quality of the manufacturing material:

— high-quality plastic (polypropylene) must have dense walls;

— for products made of non-ferrous metal, the surface must be smooth without scratches or dents;

— for systems made of ferrous metal, it is necessary to pay attention to the integrity of the structure, as well as to ensure that there are no dents on the surface of the product.

• Compliance with the parameters of the bath, as well as compatibility of the siphon connections and the diameter of the sewer pipe. If the cross-sections of the pipes differ, you can use special plastic or elastic adapters.
• Completeness of the delivery set. The kit with the main parts must contain connecting rings and sealing gaskets of the appropriate sizes and configurations

• Additional system functions. For example, siphons may have several pipes for connecting to it, in addition to a bathtub, and other plumbing accessories. For example, if there is a sink next to the bathtub or washing machine, you can connect one of these devices to the free pipe of the bathtub siphon. However, the branch does not have to be activated; if not necessary, it is closed with a sealed plug.
• Preference should be given to systems in which external parts in contact with water are made of stainless steel. This gives the required strength, oxidation resistance, and neat appearance.

Trusted manufacturers of plumbing fixtures

On Russian market A considerable number of companies from different countries peace. A wide range of products allows you to choose the most suitable option for the drain-overflow system in all respects. It is recommended to give preference to those manufacturers whose products are certified in accordance with international quality standards.

Such companies include, for example, the following:

Illustration	Brief information about the manufacturing company
	Geberit is a Swiss manufacturer representing a wide range of plumbing fixtures, including drain-overflow systems, mid-price segment. Geberit produces equipment in a wide range of models, so you can choose the appropriate option for your specific application. This company produces products from plastic, chrome steel, brass and copper.
	"Alcaplast" is a Czech brand. The company is among the top largest manufacturers of sanitary ware plastic products in Europe. The products of this manufacturer are distinguished by their reliability, simplicity of design, interesting design, and quiet operation.
	Kaiser is a German company that produces bathtub trims made of bronze and chromed steel. It is recommended to choose equipment from this manufacturer for bathtubs with deep bowls, for which it is difficult to find a siphon with non-standard sizes, since the company presents models in a wide range of sizes.
	Viega is a German company that has gained its reputation thanks to the quality and reliability of its products. It produces flush-overflow systems made of plastic, stainless steel, bronze and brass. Viega designers have developed interesting options design of visible parts of the structure. Available on the market a large assortment according to the shape and color of the devices. Affordable cost and ease of installation make the products of this company very popular among consumers. The drain-overflow systems of this manufacturer are characterized by a long period of trouble-free operation.
	"Hansgrohe" – German manufacturer, which produces drain-overflow systems of various designs made of plastic, steel, as well as combined options. The products are reliable and easy to use. Visible parts of the structure may have different design solutions, therefore, from the Hansgrohe assortment you can choose a model to suit any bathroom design.
	WasserKraft is another German manufacturer offering a variety of trim options for bathtubs and sinks. The company produces systems from black and light plastic, steel, bronze and combined materials. At the same time, the company's designers and engineers have developed variants of models with very unusual shapes. Products, especially those made from chrome-plated steel, are distinguished not only by their aesthetic appearance, but also by their high reliability and long service life.
	"Jacob Delafon" is a French manufacturing company that produces plastic products and combined options. This manufacturer is quite popular in Russia, as the systems have proven themselves to be highly reliable and easy to install and operate.
	"Triton" is a domestic manufacturer that produces a drain-overflow device from plastic different color, as well as combined design options. The products have an affordable price, but at the same time they are distinguished by very high quality and reliability. You can take it!

Recommendations for installation and operation

Self-installation of a drain-overflow system

The installation diagram for bathtub piping is almost the same for all types of drain-overflow systems. Even without plumbing experience, it is quite possible to assemble and install the structure yourself. To do this, just carefully study the instructions included with the product.

However, all manufacturer's recommendations must be followed as closely as possible, otherwise the device may begin to leak or not function properly. It is recommended to entrust the installation of automatic and semi-automatic systems to specialists, otherwise the warranty provided by the manufacturer will not apply.

To make it easier to understand the diagram given by the manufacturer, below, as an example, we will consider the assembly and installation of the simplest drain-overflow system. But first you need to figure out what the main elements of its design are called and where they are located.

In the diagram, wide red lines separate the location of the system parts outside and inside the bath. Blue numbers show plastic parts. Purple numbers are metal parts. Rubber seals are indicated in black.

It should be correctly understood that each system model may have its own characteristics. But the general principle of the location of the main parts and assemblies remains the same.

1 - Plug closing the hole in the bathtub drain neck.

2 - Protective grille on the neck, designed to trap large debris.

2c - O-ring installed between the grate and the surface of the bath.

3 - Gasket installed around the drain hole of the bathtub from below.

4 - Drain neck with pipes.

5 - A screw that tightens the protective grille from the side of the bathtub and the drain neck underneath it.

6 - Nut for the coupling screw. It is located motionless in a special slot in the drain neck.

7 - Removable part of the siphon (for example, for periodic cleaning of accumulated sediment).

8 - Plastic union nuts for connecting the siphon to the pipes - drain neck and outlet.

9 - Cone gaskets.

10 - Adapter for connecting to a sewer pipe. It can have a rigid structure or be corrugated and flexible.

11 - The gasket is flat.

13 - Outlet pipe for connecting the overflow pipe.

14 - Corrugated pipe connecting the drain and overflow necks.

15 - Sealing gasket.

16 - Plastic nut for connecting the overflow pipe with the drain and overflow pipes.

17 - Overflow neck, installed in the corresponding upper hole of the bath.

18 - Gasket that ensures a tight fit of the overflow neck.

19 - Protective grille for the overflow hole.

20 - Fastening screw for the overflow grille. The fastening system is almost the same as on the drain neck

The installation process of such a system is completely simple and consists of the following steps:

• The first step is to dismantle the old system, if it was standing. After this, the surfaces of the bath around the drain and overflow holes are thoroughly cleaned on both sides - there should be no traces of adhering dirt or rust there. It is immediately recommended to check the branch pipe (socket) of the sewer pipe to which the system will be connected - it must also be clean and have a high-quality sealing collar.
• Next, the outlet pipe of the drain neck (pos. 4) and the adapter (pos. 10), which drains water from the siphon into the sewer (10), are mounted on the siphon. To do this, fixing nuts (pos. 8) are put on the pipe and adapter, with the threads facing towards the connection joint, and then the conical gasket (pos. 9) is pulled on, with the tapering side also towards the connection.
• After this, the pipe and adapter are secured to the siphon using locking union nuts. It is better to perform these operations first, as they say, on the table, since later, in the cramped conditions under the bathroom, it will be much more difficult to perform them.
• Next, a gasket (item 3) is placed on top of the drain neck (item 4) - usually a special recess is provided for it. In this case, the neck with its upper widened part is pressed from the bottom side of the bathtub to its drain hole. In this case, it should be positioned so that the pipe (pos. 13) for connecting the overflow pipe faces the desired direction. In addition, you must immediately try to position the position of the siphon in the most convenient way, taking into account the location of the outlet pipe and the sewer pipe.
• It also fits on the drain hole on the side of the bathtub sealing ring(pos. 2c), a protective grill (pos. 2) is installed on top of it, which is tightened with a screw (pos. 5) screwed into the nut (pos. 6) located inside the drain neck. The screw is tightened to create a tight, permanent connection.
• A nut (pos. 8) is also put on the second end of the adapter (pos. 10) with the thread outward, then the cone gasket (pos. 11) is tightened. This side of the adapter is connected to the sewer pipe using corrugated pipe, which in this case is not included in the kit. Some systems do not have such an adapter at all - a pipe with a flexible corrugated section for connection to the sewer is mounted directly from the siphon body. The branch pipe of this pipe is inserted into the sewer socket. The cuff located in the socket will ensure the tightness of this connection.
• The next step is to place a gasket (pos. 15) at the upper end of the overflow pipe, inside the locking union nut (pos. 16), after which the pipe is connected to the overflow neck (pos. 17).
• The overflow pipe is connected to the drain pipe in the same way.
• All that remains is to install the overflow neck (pos. 17) in place. The procedure is approximately the same as when installing the drain neck. A rubber gasket (pos. 18) is placed and the neck is pressed against the overflow hole with outside baths. In this case, you should make sure that the flexible overflow pipe fits normally, bends smoothly along the outer surface of the bath, without “fractures”.
• On the side of the bathtub, a protective grille (pos. 19) is installed in the overflow hole, pressed against the neck and secured with a screw (pos. 20), the nut for which is fixedly located in the neck.

At this point the assembly can be considered complete. After checking the correct assembly, a test can and should be carried out. First, you simply let water into the bath - you will immediately see if there are any leaks at the main connections. Then you need to close the drain with a stopper and draw a full bath so that the water begins to come out through the overflow. At this stage, both the functionality of the overflow and the absence of leaks in this part of the system are checked. The final step will be to check the tightness of the connections during a volley discharge of water - it happens that when simply passing a stream, the connections are dry, but when creating high blood pressure and when all pipes are completely full, signs of leakage appear. If the bath is empty and all connections are dry, the job is done efficiently. If there are signs of leakage, you will have to tighten the nuts, and possibly replace seals that have lost elasticity or are deformed. After this, the test is repeated, again in full.

It should be noted that many craftsmen additionally coat the connecting nodes, especially in the places where the gratings adhere to the surface of the bathtub, with silicone sealant. But when buying quality systems this is usually not necessary. Unless the drain-overflow system is installed on a very old steel or cast iron bathtub, around the drain holes of which there are irregularities caused by corrosion or chipped enamel.

Recommendations for operating and caring for the drain-overflow system

In order for the drain-overflow system to serve for a long time and not unexpectedly fail, it needs appropriate maintenance that will help maintain its functionality. Preventive actions It’s not difficult to do, and they consist of the following steps:

• Periodic inspection of the system. In particular - connecting nodes, for leakage, as well as mechanical damage. It is especially important to do this if the lower part of the bathtub is not covered with a protective screen and there is a possibility, for example, of touching one of the parts during cleaning.

• Siphon cleaning citric acid, diluted in hot water, or one of chemicals designed for cleaning sewer pipes. This event is recommended to be carried out at least once every three months.
• In some cases, it makes sense to change the rubber sealing gaskets of the system from time to time, since under the influence of water, especially if it is hard, they lose their elasticity and the joints may begin to leak. But this is rarely resorted to - usually seals, once properly installed, serve no less than the siphon and necks.
• Need to scroll back and forth periodically swivel mechanism, if a semi-automatic system is installed, especially if the bathroom is not used for a long time.
• If a visual inspection reveals even minor cracks on the siphon, it must be replaced. Such damage can lead to a serious emergency situation, the elimination of which will cost much more than replacing the siphon.

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If you follow all the recommendations for selecting and installing the system, as well as for regular maintenance, the drain and overflow will last a very long time without causing problems to the owners. Installing the system is not so difficult, the main thing is that all connecting nodes are sealed. But if during installation or during operation incomprehensible problems appear, then it is better to immediately contact a good plumber.

And to help those who are planning to install a bathtub drain and overflow system on their own, there will be a video below:

Video: How to install a bathtub drain and overflow system yourself