Fecal pumps. How to choose a fecal pump with a grinder for cesspools Grinder pump for sewage in a private house

Private households for the most part do not have a connection to the central sewerage system. Waste from the toilet, kitchen, and bathrooms ends up in the waste pit on the site. The volume of the cesspool quickly increases and constant cleaning is required to prevent waste from flooding the area.

Sewage pump with grinder for – good decision for a private house or cottage where it is not possible to connect to a central pipe or the location of the house does not allow wastewater to be discharged away from the site. You have to periodically pump out the contents using a pump and hire a sewer truck.

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Why do you need a fecal pump?

The scope of application of fecal pumps is quite extensive:

• for pumping contents of an outdoor country toilet into a septic tank, located closer to the street, for ease of removal;
• for pumping waste and fecal water into a special machine;
• in public places - beaches, cafes, hotels, where there are kitchens and large food waste ends up in the drain;
• for cleaning reservoirs where there is a high probability of large soft objects getting in;
• draining areas or basements from wastewater after rain or snow;
• for pumping out city sewerage in case of blockage.

This is just a small list of capabilities that a submersible fecal pump can perform.

Pump operating principle

Sewage pumps with grinder have different principles work depending on the modification:

1. Submersible units protected by a waterproof case. They are expected full immersion into the working fluid. There is a sensor to monitor the wastewater level. The cutting mechanism processes and crushes large particles with a diameter of up to 5 cm into smaller ones.
2. Semi-submersible mechanisms assume the location of the motor above the wastewater. There is also a sensor that prevents the engine from touching the working fluid. The motor is not protected.
3. Surface fecal pumps With cutting mechanism They pump out the working fluid through a special hose, which is inserted into a sump or cesspool.

Important! The most versatile and practical device is a surface pump. It can be used in all situations on the territory of a residential building or cottage, be it pumping dirty water, fecal matter from the toilet or drainage outdoor pool. Such models are least susceptible to contamination, so maintenance of the device will be carried out rarely.

Toilet pump device

Fecal pump made of corrosion-resistant materials. This is especially true for submersible models, which always operate in chemically aggressive liquids. Most often these are cast iron and stainless steel.

The pump has an oil chamber that protects the main working units from overheating. The oil does not need to be changed during operation - it is designed for its entire service life.

There is a cutting wheel with sharp knives for grinding large particles. Surface models have a pipe through which liquids are sucked in.

The main design detail is an electric motor. The devices are equipped mesh with a certain cell size so that objects larger than expected cannot get into the mechanism.

Surface pumps

External pumping equipment is capable of crushing not only soft objects, but also wood, plastic, and glass that have gotten inside. The more powerful ones also crush stones. The devices differ:

• power;
• shape;
• sizes.

The model can be selected based on the purpose for which it is purchased. The use of surface equipment is convenient because it can be moved if necessary and install in different places.

Submersible pumps

The main purpose of submersible sewage pumps is to clean septic tanks. Most of these models are automated and can be customized independent switching on according to a specific schedule.

If this is a pump for fecal matter in a public place, then it will need to be turned on several times a day so that the pit does not overflow and the smell does not penetrate into the room. Replaceable carbon filters are used to neutralize odors.

Sometimes submersible models with a chopper are used in agriculture. It is used to prepare raw materials for compost. A manure pump with a grinding mechanism crushes cattle feces along with straw and other vegetation, then pumps it into piles where the compost heap is located and organic fertilizer matures.

For industrial use, powerful models are needed, for example, mobile pumping station, which runs on diesel fuel. The manure pump is installed on vehicle, most often on a tractor. Such equipment makes people’s work easier and speeds up the process of preparing fertilizer.

Important! Submersible mechanisms are more complex in design and require careful installation according to the manufacturer's instructions.

Which pump is more convenient in everyday life?

For household use units are used that operate from a standard 220 V power supply. If there is only one phase on the site, then you can choose a model for such a case. A household fecal pump can operate from either a two-phase or three-phase network.

In order for the pump to cope with all tasks, the diameter of the mesh must be at least 3.5 cm. Larger is better, since children can throw anything into anything - clothes, toys.

For household use you can choose any model– submersible, semi-submersible or surface. It depends on where exactly the device will be used:

• if only for the toilet, choose a submersible model;
• if you plan to change the place - then superficial;
• if the area or basement is often flooded and the main problem is wastewater, then semi-submersible.

Judging by consumer reviews, they most appreciated surface and submersible models, which require less repair and are more versatile.

If the kitchen and toilet have the same drain, then you need to purchase a submersible model, because:

• the unit will not freeze while in the working fluid if you plan to operate it all year round;
• fecal pump with grinder for cesspools can be raised to the surface if necessary and inspect;
• the minimum power is enough to periodically turn on and clean the septic tank, which saves energy.

Sewage water equipment with grinder can also be used to pump liquid into compost heap, where you can prepare by fermentation organic fertilizer for the garden. To do this, just add a concentrate of live bacteria. Liquids with chemical additives such as detergents and powders are not suitable for preparing fertilizers. Therefore, only fecal waste should be used.

Installation of a cesspool pump

For stationary use, the unit must be lowered into the pit along guides. It’s good if you plan to use the device when the hole is not yet filled, since it will require connecting the pipe to the outlet pipe, which is easier to do in dry mode. First, the submersible equipment is attached to, then lowered to the bottom of the pit, where the pipe connects to the pipe. The device is fixed by its own gravity - this is facilitated by the heavy cast iron body.

Surface models for pumping cesspools are not used in winter time, since the liquid freezes easily and leads to equipment failure. Such units are useful in summer cottages in the spring and summer, when the temperature outside is above zero.

There is an option to connect the pump directly to the toilet. The equipment will crush the waste and send it to the pit. If the pump has a cutting mechanism, then a large diameter pipe will not be needed.

For pump connections and plumbing equipment an adapter is needed. This model can be hidden so that it does not spoil the room or toilet. The temperature of the liquid should not be higher than 40 degrees.

Several types of plumbing equipment can be connected to one unit:

• toilet;
• bidet.

For hot drains, you need a different model that can withstand temperature up to 95 degrees. If you plan to live permanently, it is recommended to immediately purchase a universal device to which you can connect a dishwasher and washing machine. It will cost more, but it will be convenient to use.

Rating and prices

The rating of fecal equipment is headed by the German company Grundfos. Its products are in demand, despite high prices. Consumers prefer to give money for reliable technologies and durable materials so as not to be distracted by repairs during work.

Although in terms of repairs, the company is also doing well:

• spare parts are constantly on sale;
• there are service centers that carry out repairs pumping equipment;
• In the event of a defective purchase, which is practically impossible, the company will replace the product.

More low prices and quite acceptable performance characteristics are offered by domestic manufacturers, namely the company Gileks. The company works with reliable materials and branded equipment, so the products are of good quality. In the event of a breakdown of pumping equipment, you can always repair or replace the product.

Here are some of the most popular models:

• Grundfos (SEG series). The fecal pump from a German manufacturer is considered the most reliable. This is evidenced by consumer reviews and warranty statements. Made from rust-resistant materials - cast iron and steel. Immersion depth is 10 meters. Power reaches up to 2200 W. The price of equipment starts from 73,000 rubles. These are the most powerful models from the household series.
• Gilex (Fekalnik series). Household fecal pump domestic manufacturer– a universal device for a private home. With its help you can clean the septic tank, pump out clean water from a well, pumping out dirty water after prolonged rains, watering the garden. Works from a depth of 10 meters. The price starts from 6,000 rubles.
• Sprut (V1300D series). The maximum particle size that the device can pass through is 1 cm. It works from a depth of 5 meters. You can buy it for 9000 rubles. The fecal pump with grinder for the toilet from Sprut is manufactured in China, but is of good quality, as evidenced by consumer reviews.
• Herz (WRS series). The model can be used for domestic and commercial purposes. The body is made of of stainless steel. The power of the device is enough to pump liquid to long distance. The cutting mechanism easily shreds fabric fibers, ropes, clothes caught in drains, and fecal matter. Supports high level performance throughout the entire service life. The cost of equipment starts from 17,000 rubles.

To choose the right equipment for home use, you need to know several important points:

• at what depth the pump will operate;
• estimated distance from the pump to the waste storage area;
• approximate volume of liquid;
• what size will the solid impurities be;
• what is the diameter of the pipe leaving the equipment.

You can determine the required working depth using the formula: pit depth + (distance to storage location divided by 10). Example: 7 meters is the depth of the septic tank. The distance of 20 meters to the sump, divided by 10, will be equal to 2. And 7 + 2 = 9 m. That is, you need a unit that will operate from a depth of 9 meters. Accordingly, it is necessary select device power with such performance characteristics.

Important! Pumps for pumping out cesspools help make life in a private home more comfortable, so it’s worth investing in purchasing a suitable model.

A fecal pump is an expensive, but practical and reliable device. For correct operation, you must follow the installation rules described in the operating instructions. At correct connection and meeting operating conditions, you can count on a long service life without the need for repairs.

Country house or country cottage will not be able to cope without a reliable sewer system. Progressive hydraulic devices, which include a fecal pump with a grinder, help ensure its uninterrupted functioning. It has several versions suitable for specific operating conditions. What it is and how to choose the right unit is in our article.

Methods of use

The device has multi-purpose use in domestic and industrial conditions. It is installed for seasonal pumping in the warm season in the following cases:

• emptying the cesspool;
• pumping out of septic tanks;
• cleaning containers with stagnant contaminated water.

The built-in mechanism is capable of grinding not only fibrous structures that fall into the sewer, but also perform other work for the garden. Knives can easily chop up organic elements found in water:

• grass or fallen leaves from trees;
• seaweed;
• particles of household waste, etc.

The resulting fine-grained mixture does not load the pump motor and increases the throughput of the connected pipes.

Due to the fact that a fecal pump with a grinder for cesspools literally cuts the garbage it encounters into millimeter-sized fragments, the risk of jamming is reduced. This feature allows the devices to be used in transporting the following liquids:

• rain or storm drains (containing leaves or small branches);
• drainage from the sink (there are food remains);
• dishwasher drain (large particles come across);
• toilet sewage - waste products, toilet paper, foreign objects, etc.

A variety of sewage pumps with grinder are necessary for places where the sewer system is used uncontrollably by a large number of users, in particular we're talking about about public toilets.

Foreign solids can also get into pipes in catering establishments, campsites or factories. Water is pumped out with units of this type from natural reservoirs for their partial drainage or for liquid selection. Silt or algae can enter inside. Additional cutting is not necessary in systems with channels with an internal diameter of less than 80 mm.

Construction and basic elements

To obtain a fine fraction from organic and inorganic residues, a cutting unit is installed in the design. It has several options:

• the blades of the auger impeller, which has a conical shape, are sharpened on the outer side;
• sharpened blades pass closely along the polished end of the output cylinder, providing a scissor effect;
• a pair of knives is located coaxially with the diameter, processing incoming waste;
• the cutting module is mounted next to the hole and rotates through an additional gearbox.

The rest of the design resembles a conventional drainage pump. The design also includes:

• Electric motor. Household products operate on 220 V, industrial products are designed for 380 V.
• Frame. Different copies are made of different materials.
• Fence part. Allows fluid to flow without blocking the inlet.
• Outlet pipe. It allows connection to a pipeline for further transportation of liquid.

An important feature of the fecal pump with a grinder for cesspools is the use of materials resistant to external influences for the housing and working units. They must withstand mechanical and hydraulic loads, and also not be damaged by chemicals. A durable body must not be destroyed by fine sand acting as an abrasive.

The material for the body is:

1. Stainless steel - this material is practically not subject to corrosion.
2. Cast iron - powerful body withstands significant mechanical load.
3. Plastic - used in budget models, resistant to chemicals.

Knives are made only from stainless high-alloy steel. They have an additional protective coating.

Equipment functionality

It is clear that the main function of the fecal apparatus is to pump out contaminated liquid from the sewer, and it is for this purpose that it is most often purchased. But he also copes with other tasks 100%. We are talking about the following potential:

1. When the house is located in a low-lying area, any heavy rainfall leads to flooding of the basement and basement floors. Self-priming equipment is capable of pumping out water with solid inclusions, including small stones.

If flooding occurs regularly, you can make pits or storm drains in the basement or basement to place the unit. And if you choose equipment with a float, you don’t even have to pull it out - it will start working as the pit is filled.

1. It is convenient to use a pumping unit for cleaning drainage holes or collectors. It is also convenient to use it for pumping out the chambers of a septic tank in order to transfer liquid to the filtration field.
2. If there is a river or lake nearby, you can use fecal equipment with a grinder to collect water for irrigation or other technical needs. Strong steel knives are capable of cutting through any solid inclusions, not counting mud, algae and branches, so the area is cleared of foreign objects there will be plenty of water.

VIDEO: Submersible fecal pump with grinder

Types of models

Each fecal pump with grinder for cesspools belongs to one of three large groups. The main difference between them is the installation method:

• Submersible pump. It is located at a shallow depth in the thickness of the liquid. The main advantage is the processing of waste up to 45 mm in diameter, and it also has significant lifting power. The disadvantage is inconvenient maintenance and repair.

Immersion models are the most popular in households

• Surface fecal pumps with grinder. They are based on land, and the intake liquid is supplied through a special pipe or hose with a diameter of more than 60 mm. The convenience lies in the fact that you can pump out liquid from a container with a small diameter. It is enough to lower the intake sleeve there. You can permanently place the device near the toilet, kitchen or bathroom.

Surface equipment is quite bulky and very noisy compared to submersible products - they are installed outside the house

• Semi-submersible vehicles. Rare examples have a shredder, since the maximum diameter of possible contaminant particles is limited to 15 mm.

In addition to devices for domestic needs, industrial installations are used. They are installed in institutions, enterprises and organizations.

When choosing a product for pumping liquid from the kitchen or from dishwasher, it is necessary to select a specimen capable of transporting hot liquid with temperatures up to 80-90°C.

Type of operation

Installation depends on the method of use. In some households, pumping is used regularly, sometimes from time to time.

In the case of stationary operation, it would be appropriate to use a submersible fecal pump with a grinder or use a semi-submersible type unit. They will need dismantling only for the period of preventive maintenance or repair. They will be most comfortable in a prepared receiving well. The diameter of the hole must be at least half a meter. All outlets from the bathtub, kitchen, bathhouse and other places are connected to such a tank.

It will be necessary to configure the system for pumping depending on the degree of filling of the well. After removing the waste, it is supposed to turn off the automation so that air is not trapped.

If pumping involves long breaks in time, then it is worth using a submersible pump with a small device in the form of rigid guides. Additionally, a pulling cable is attached to the device.

Vertical posts provide desired position for work. Moving along them, the device descends to the very bottom of the pit. After work, take out the unit, clean and dry it. It is preferable to store it in a dry, warm place, such as a utility room, garage or pantry.

Main evaluation criteria

If you need a fecal pump with a grinder for cesspools or pits, you should focus on certain parameters. Among them:

Power and voltage

Most modern household equipment runs on a standard 220V power supply. Power defines it functional characteristics- column height, pumping speed, grinding fraction, etc. This information is reflected in the technical data sheet of the product and must be studied.

Example. If you need a fecal pump with a grinder for sewage in a small country house, which can also be used to pump water from the basement or drain it, then 500 W equipment will do just fine. And if you need equipment that will work constantly and “serve” a family of several people, the optimal power will be 1-1.5 kW.

Performance

This is the volume of liquid pumped per unit of time. For all types of suction equipment, this indicator is measured in liters per minute. An ordinary household unit with a power of 500 W pumps about 150 liters of liquid per minute, and 1.5 kW equipment will pump 650-700 liters. This means that even with a large volume it will not take much time to work.

Column height

It is usually measured in meters. For pumping devices, this indicator indicates the height to which the water column rises at the time of pumping. And if for ordinary submersibles this is a unit of vertical design, then for fecal ones it is a horizontal unit. Considering that it is often necessary to work with heavily contaminated liquids, the average indicator is taken as a basis - 1 created pressure ensures the movement of water over a distance of 3.5-4 meters.

For domestic needs, 10-15 meters of water column is sufficient.

What is the body made of?

Metal is an absolute priority, since it is many times stronger than even the highest quality plastic, although modern polymers have repeatedly confirmed their strength. More expensive specimens are made of stainless steel, simpler ones are made of cast iron. We are not even talking about ordinary steel, since feces and wastewater are too aggressive chemical composition so that the steel body can cope with this for a long time.

Cast iron fecal appliances with a grinder are very massive and heavy, so carefully choose the thickness of the rope. In addition, cast iron is a brittle material and can burst if it receives an accentuated blow.

The presence of a float (water level sensor)

Even if the unit is not intended to be used in automatic mode, the presence of a water level sensor with a shutdown function will protect it from emergency operation outside of a liquid medium.

Immersion depth

It is clear that lowering a suction unit of a certain power and performance to a greater depth than technically designed, and expecting that it will work normally, is at least strange. Each sample has its own parameter for the distance to the water surface, and this is reflected in the data sheet.

Solid size

Since this is a fecal pump with a grinder, there is a certain diameter of foreign matter that it is able to grind. For domestic needs, it is enough to choose 20-30 mm, this is an excellent indicator.

Please note that it is the size of the solid inclusions that matters, not their hardness or density. The knives are capable of crushing even stones.

Working environment temperature

Depending on the environment in which - hot or cold - the drainage device is planned to be used, the operating temperature is also selected. Cold indicator - up to 35°C. Hot - up to 90°C.

Rating of the best models of fecal pumps with a grinder

Let's look at several popular, in-demand devices that have proven themselves in the domestic hydraulic pump market:

Gilex 150/6

Russian manufacturers offer a budget model for 3,000 rubles. It is of the household type and can be used for pumping out sewerage in the house. The power is 0.4 kW with a maximum pressure of 6 m. It operates from a household power supply of 220 V and is capable of flowing up to 9 m 3 / hour. Stainless steel body.

Grundfos SEG

German assembly and high quality are noticeable in professional equipment for 50,000 rubles. The cast iron body is equipped with an overheating protection system and is protected from corrosive processes. The power is 900 W, and throughput reaches 15 m 3 /hour. Starts from a voltage of 220 V. Operates at a depth of up to 10 m.

ESPA Draincor 180

Spanish installation, providing excellent value for money among analogues. It withstands various environments and operates with minimal noise levels. The body of the device is cast iron. Power is 1.7 kW. The pressure reaches 12.5 m. Capable of withstanding voltage drops of 220±10% V.

For a permanent connection in the toilet, the Grundfos Sololift2 line is used. It starts and stops automatically after liquid enters the working cavity. The unit is installed directly behind the toilet.

VIDEO: Grundfos SEG sewage pump with cutting mechanism

Creating comfortable living conditions in a private home is by no means limited to equipping heating, ventilation and air conditioning systems, ensuring an uninterrupted supply of water and power, high-quality finishing and saturation of premises comfortable furniture and modern household appliances. You definitely have to think about the “dirty” side of the issue, invisible in everyday life, but this does not lose its extreme importance. We are talking about the problem of collecting and recycling various waste that inevitably accumulates in the process of family life.

One solution is to order a sewage disposal truck to pump out accumulated sewage as the cesspool fills. But in some cases it is quite possible to do it on your own by finding the possibility of waste disposal. But in this case, special equipment will be required, in particular, a fecal pump with a grinder for cesspools. How to choose such a device and what functions it can perform is described in this publication.

General structure of a fecal pump with a grinder

First, let's define the types of fecal pumps, which depend on the location of their installation.

• Surface fecal pumps are self-priming devices capable of lifting a viscous liquid with a significant amount of contaminants from a certain depth through a hose lowered into the waste pit. The sewage disposal machines familiar to most private home owners are equipped with just such a surface self-priming pump.

The advantages of such a scheme are: household use Hardly ever. Such pumps are usually very large and heavy, otherwise they will not be able to cope with the suction of viscous liquid from depth. Such bulkiness entails the need for a permanent installation, which, in turn, will require the creation of certain conditions - protection from precipitation and from negative temperatures air. Most often, surface pumps are used in wastewater treatment plants, factories or agricultural complexes. Purchasing such a device for a private home is an extra hassle, although it will certainly cope with the task of cleaning an ordinary cesspool.

In addition, the operation of the electric drive is always accompanied by noise, which is also amplified by the cooling of the pump - an air circuit is used here, that is, a fan placed on the motor axis, covered with a casing.

• Semi-submersible sewage pumps are almost always permanently installed equipment that requires special installation. The idea is that the electric drive (motor) is located on top, in the air, and the working chamber of the pump is immersed in the waste storage tank. They are connected by a long shaft to transmit torque.

Such pumps have proven themselves well in large objects, for example, at livestock farms, where regular, almost daily pumping of accumulated waste is required. They also find application in a branched sewage system connected to one volumetric storage tank, which also has to be emptied quite often.

But in a household setting, the use of such equipment, which is bulky, difficult to install and requires space, is completely unreasonable.

• The best choice for domestic use is a submersible fecal pump. They are small in size, easy to use periodically or continuously, unpretentious, and operate without noise. They do not require air cooling, since during operation they are in liquid medium, which removes heat well from the electric drive.

Despite the very wide variety of models on sale and the significant range in prices, almost all submersible fecal pumps are configured approximately the same.

All such pumps are a vertically located cylinder. The upper part is the electric drive unit, protected by a housing (item 1), metal, less often plastic. The power cable (item 2) enters the housing from above, ensuring complete sealing of the entry point. To carry the pump and hang it in a cesspool on a cable, a metal handle (item 3) is rigidly fixed to the body. Special eyes may also be provided to secure the suspension.

Inside the housing there is an electric drive - a stator (item 4) and a rotor (item 5) which is mounted on a vertical shaft (item 6) to transmit rotation to the pump part. The shaft rests on groups of bearings (item 7).

Between the electric drive and the working chamber of the pump there is an oil chamber (item 8) - a sealed cavity filled with special technical oil. It performs three functions at once - it ensures a tight fit of the sealing collars to the rotating shaft, ensures constant lubrication of the bearings and serves to remove heat, that is, cool the friction units.

Below is the pump itself - the pumping part. This is a body (item 9) of a certain configuration - a “snail”, in which the working chamber is located. The bottom of the chamber is usually closed with a lid (pos. 10), providing access to the pumped liquid in the center. Often the special shape of this lid also plays a certain role in grinding waste.

Inside the chamber there is an impeller (item 11) with an impeller. The rotation of the wheel creates a powerful centrifugal acceleration of the liquid, a significant increase in pressure at the periphery of the chamber with a vacuum in the center, which leads to the formation of a flow with high pressure, which is discharged through a special pipe (item 12). The pipe may be stationary, directed upward or perpendicular to the axis of the pump, or may have flange connection, and then the direction of the output flow can be changed if desired - up or to the side. The coupler may have a groove for attaching a hose with a clamp, or a locking part - for special hoses, like firefighters, which, by the way, can also be included in the pump kit - as shown in the illustration.

Fecal pump

Attached to the bottom of the pump is either a support platform with holes for the passage of liquid to the working chamber (item 13), or special legs for reliable installation pump onto a solid base.

As already mentioned, quality fecal submersible pumps are exposed by a cutting mechanism. Wastewater does not contain large concentrations of fibrous waste, paper, fabric, plastic bags, kitchen waste, etc. In order not to impede the operation of the pump impeller and to prevent the creation of plugs in the hose when pumping liquid, the cutting mechanism will crush these inclusions to sizes that will no longer pose serious interference.

Cutting mechanisms may vary slightly.

• One of the varieties is where a sharpened impeller with knife blades is placed on the shaft in front of the chamber entrance.
• Another type is an impeller blade, the blades of which are tightly ground to the outer plane of the lower cover of the pump’s working chamber.

Essentially, exactly the same principle as in a regular home meat grinder

• The next variety - the knife has a cylindrical shape and is equipped with two cutting edges, and two protrusions are made at the entrance hole into the chamber. When rotating, the cylinder edges and protrusions work like scissors.

• The knife can stand motionless, and the working pair to it, to create the effect of scissors, is created by the edges of the impeller blades.

• Finally, the impeller itself can have a very intricate shape with blades turning into sharply sharpened knives.

It is difficult to say which type is better. When choosing a pump, it would probably be useful to clarify whether it is possible to purchase spare parts for repairing the chopper, and how much they will cost.

Many pumps are immediately equipped with a water level switch with a built-in switch. This allows them to be included in automated system pumping out storage tanks. The control unit will turn off the pump when the container is drained to a specified level, and turn it on when the water rises again to a certain level. The presence of a float switch does not in any way prevent the pump from being used in normal, “manual” mode, however, the cost of such devices will be slightly higher.

Of course, different models from leading pump manufacturers may have their own design features, but the design principle outlined above will still remain the same.

What is the functionality of a fecal submersible pump?

The direct purpose of the fecal pump is clear, but it is not limited to this. Its unpretentiousness and high performance open up many other possibilities for use in a variety of cases that the owners of their own homes have to face.

• If the site is located in a lowland or on marshy soils, then the accumulation of moisture in the basement or basement is often a common occurrence. If you equip them with pits for collecting water, then as they fill, you can pump them out using the same submersible fecal pump. Often the pump is installed permanently in such pits and operates automatically using a float switch.

• If the farm has a submersible sewage pump, then it will always help cope with the consequences of the elements - basements or living quarters, wells, low-lying folds of the site, etc., flooded due to floods, heavy rains, sudden melting of snow or man-made accidents. The presence of a shredder allows you to not worry that dirt or debris that gets into the pump will hinder its operation.

• If the site has a storm and (or) drainage system, then the pump can serve a good purpose here too. With its help, it is possible to prevent wells or collectors from overflowing, for example, during periods of prolonged rain, when the drainage capacity of the wells is simply not enough. It may also be useful for emptying the last chamber of the septic tank - with its help, water is pumped out to filtration fields or even for some useful purpose.

Special bioactivators will help in purifying water in septic tanks and cesspools.

It is in vain that many owners of private houses ignore the use of special biological additives for autonomous sewers. are able to quickly process organic waste into water and harmless mineral sediment, improve the drainage capabilities of storage wells, eliminate bad smell. More details about this can be found in a special publication on our portal.

• Artificial reservoirs created on the site require periodic cleaning and replacement of water. And in this case, a submersible fecal pump may well come to the rescue, which is not afraid of mud deposits at the bottom.

• Finally, in the case where there is a natural body of water - a lake or river - in the immediate vicinity of the site, a pump can also be used for irrigation purposes. Of course, with its very high productivity, there is no point in supplying water directly to irrigation installations, but filling watering containers will not take much time.

In a word, this useful device There will definitely be a use, not even considering its main purpose.

How to choose a fecal submersible pump?

Basic criteria for evaluating a submersible sewage pump

If you decide to purchase a fecal submersible pump for a cesspool, your choice should be guided by a number of certain criteria.

• Pump supply voltage and power consumption. Almost all household-grade submersible fecal pumps are designed to operate from a conventional 220 V 50 Hz network. Power indicators predetermine the remaining operational characteristics of the equipment - its productivity, the pressure created, the potential for pumping liquids of high viscosity or with a large amount of contaminants.

For country conditions, a pump with a power of up to 500 W is usually sufficient. But if you plan to regularly maintain the autonomous sewer system in the house permanent residence, then it is better to choose a device with a power of about 1 ÷ 1.5 kW.

As power increases, energy consumption also increases, of course. But if the pump has good performance, then long-term operation is not expected - usually even for pumping significant volumes of several cubic meters of water, 5 ÷ 10 minutes are enough, and for such short term It will not “wind up” the electric meter any sensitively.

• The performance of a submersible pump is its ability to pump a certain volume within a unit of time. Typically for drainage and sewage pumps this figure is expressed in liters per minute. Even the most “weak” pumps, as a rule, cope with a volume of about 150 l/min. The performance of pumps with a power of 1.5 kW or more can reach 500 ÷ 650 l/min! Half a ton per minute – even a large container won’t take much time!
• Created pressure. This is a measure of the fluid pressure created by the pump at the outlet. Typically, for pumping equipment of this class, this value is expressed in meters of water column. This pressure should be enough to lift liquid waste from depth and deliver it along a horizontal section of the pipe (hose) to the disposal site. We must not forget about the horizontal section, especially since we often have to work with viscous waste, and the hydraulic resistance of the pipe can be quite large. For an approximate calculation, you can focus on the following ratio - 1 meter of created pressure will ensure the movement of liquid along a 4-meter horizontal section.

Typically, household-grade submersible fecal pumps are capable of creating a pressure of 10÷15, sometimes more, meters.

• Case material. Preference should still be given to metal models - they are more reliable. But it must be either cast iron or high-quality stainless steel. Wastewater is a very aggressive environment from a chemical point of view, and ordinary steel will not last long in such conditions.

Pumps in different housings - cast iron, stainless steel and plastic

Cast iron, of course, is cheaper, but its pumps are quite massive, and this will need to be taken into account when choosing a suspension - rope, cable or chain. In addition, cast iron should be handled with a certain degree of caution - the alloy is brittle and can crack under an accentuated impact.

Stainless steel pumps are lighter and look prettier (if that matters in this case...). But such improvements certainly affect the cost of the model.

Plastic pumps cause a lot of controversy, and have not yet won full trust from users. It is clear that modern polymers often even surpass metals in their strength properties, but certain concerns still remain.

• If you plan to automate the pumping process, or to insure yourself in case of your own carelessness, it is better to choose a pump immediately equipped with a float water level sensor with a switch.

Automation connected to the float switch will prevent the pump from running dry after the well or pit is emptied

If you plan to use the pump only in manual mode, then you can save money on this option.

• The pump cannot be lowered to any depth relative to the water surface - this parameter is also specified in technical specifications products.
• For any pumps intended for pumping dirty water, and for fecal pumps in particular, it is important permissible size solid inclusions. It is usually indicated in millimeters, for example, up to 30 mm - this is considered a good indicator.
• If hot wastewater is to be pumped, the pump must be designed for such operating conditions. Typically, most fecal submersible pumps Designed for cold water – with temperatures up to 35 °C.
• The pump is cooled externally by the liquid in which it is immersed. But as it pumps out, the power unit may protrude above the water and begin to heat up. Therefore, it will never be superfluous to have built-in pump overheating protection - when the stator windings reach a certain critical temperature electrical circuit will be interrupted.

If there are frequent interruptions in the stable power supply in your area of ​​residence, then the model should have protection against power surges or an extended range of permissible

• The reputation of the equipment manufacturer is important. Of course, it is best to choose models famous brands, foreign and domestic, be sure to clarify how service is organized in the region and how actions will be taken in the event of a complaint about the purchased pump - immediate replacement, refund, sending to the factory for repair, etc.

Sewage pumps of the brands “Wilo”, “Grundfos”, “Unipump”, “Dzhileks”, “Pedrollo”, “Herz”, “Vikhr”, “Metabo”, “Calpeda”, “ESPA”, “Quattro Elementi” enjoy unconditional authority. , “Sturm”, “Sprut” and others. But this must be a truly original product, and not a cheap knockoff. Therefore, it is necessary to purchase such equipment exclusively in specialized stores, after carefully reading the accompanying documentation.

Below is a brief overview of popular models of submersible fecal pumps

Review of fecal pump models

Model name	Illustration	Brief description of the model	Approximate price level
"Dzhileks Fekalnik 255/11 N" (Russia)		Products Russian company, from development to production. Stainless steel body. Pump power – 1100 W. The created pressure is 11 m of water. Art. Productivity – 255 l/min. Permissible immersion depth is 8 m. Float switch. Overheat protection. Weight – 7.5 kg. Stepped connection pipe for ¼, ½ or 1 inch hoses. The permissible size of solid inclusions is 35 mm.	8200 rub.
"STURM WP9709SW" (brand – Germany, assembly – China)		A fecal pump with a grinding device that has earned a lot of high ratings from users. Cast iron body. Power 900 W. The created pressure is 12 m of water. Art. Immersion depth – up to 5 m. Float switch. The permissible size of inclusions is up to 36 mm. Weight – 17.6 kg. Outlet pipe – 2 inches.	8500 rub.
"Whirlwind FN-1100L" (brand – Russia, assembly – China)		High-quality fecal pump developed in Russia. Combined body – stainless steel + cast iron. Power – 1100 W. The created water pressure is 9 m. Productivity – 233 l/min. Grinding mechanism. Float switch. Internal anti-air valve. The pipe is 2 inches. The weight of the device is 17.6 kg.	11600 rub.
"QUATTRO ELEMENTI PROF Sewage 1100F Ci-Cut" (brand – Italy, assembly – China)		An excellent model developed by a famous Italian company. The body is a combination of stainless steel and cast iron. Power – 1100 W. Productivity - 233 l/min. The created pressure is 7 m of water. Art. Knife chopper. Float switch. Built-in overheat protection. The maximum size of solid fractions is up to 15 mm. Weight – 19 kg. It is famous for its durability and low maintenance requirements.	14,000 rub.
"Herz WRS25/11-180" (Germany)		High quality pump designed for the most extreme conditions operation. Body – stainless steel + cast iron. Power – 800 W. The created water pressure is 14 m of water. Art. Capacity – 260 l/min. Maximum immersion depth is 8 m. Knife chopper made of tool stainless steel. The maximum water temperature is up to +40 degrees. Weight – 28 kg. The outlet pipe is 2 inches, on a flange that allows changing the flow direction.	13000 rub.
"Pedrollo BC 15/50" (Italy)		One of the leaders in quality and high performance. The body is stainless steel, the working chamber is cast iron. Supply voltage – 380 A, drive power – 1100 W. The created pressure is 14 m of water. Art. Increased productivity – up to 800 l/min. The maximum diving depth is 5 meters. Float switch, all degrees of protection. The upper permissible temperature limit is +40 degrees. The pipe is threaded, 2 inches. Pump weight – 15 kg. The permissible size of solid inclusions is up to 50 mm.	28800 rub.
"Wilo Drain TP 50/TP 65" (Germany)		Top quality model, German design and production. Frame power block– stainless steel, working chamber – cast iron. Drive power – 1000 W. The created water pressure is 9 m of water. Art. Productivity -433 l/min. Maximum diving depth is 10 m. Float switch is optional, it is possible to purchase a model without it, but a special plug is provided for connection. The permissible size of solid inclusions is up to 44 mm. The impeller is single-blade centrifugal or free-vortex.	25,000 rub.
"Grundfos SEG 40.09.2.1.502" (Denmark)		Fecal submersible pumps of the highest quality category. The body is cast iron. Drive power – 1300 W. The created pressure is 15 m of water. Art. Capacity -250 l/min. Flange adapter for 2" pipe. All modern levels of protection. Built-in water level switch, no external float system or external unit automation. Possibility of quick adjustment of the gap between the impeller and the housing. Shortened shaft, reducing loads on the bearing block. Efficient waste shredding system.	47,000 rub. and higher

Video: operation of a fecal pump with a grinder - “Grundfos SEG”

A little from personal experience

First, briefly about the background of the issue.

The scene is the city of Bendery, Moldova, Transnistria. The distance from the house to a fairly large river by European standards, the Dniester, is about 500 meters, but the height difference is quite significant, about 6 meters.

We bought the house 14 years ago - in September 2002. Before that, no one lived in it for a couple of years. Among the “conveniences” there was only a tap in the house - there was no toilet, no bath, no shower. The drainage pit is located in the yard, 3.5 meters deep, concrete walls and free drainage from below. The top is closed with a cast iron hatch. By the time of purchase, it was, of course, practically empty.

In the first month of residence, all communal amenities were created, including a bath, toilet, washbasin, automatic washing machine- they were all tied to this particular pit. The only exception was the kitchen - due to the peculiarities of the location of the premises of the house. The drain from the kitchen was led into another hole, which serves as a storm well and is located near the gate to the yard.

Why is this being told? The fact is that over 12 years, the intensive use of water by a family of 4 people has never led to an overflow of the sewage pit. Moreover, someone took a bath - almost every day. But two years ago, while carrying out small-scale work in the bathroom, I decided at the same time to call a sewer truck and clean out the cesspool. There was no good adviser nearby at that time - DO NOT TOUCH THE PIT until it copes with its drainage functions. And I wasn’t smart enough to read forums on the Internet - the ladies were given a lot of recommendations of the same kind in this regard.

In a word, after the pit was pumped out to the bottom, serious problems began. Just a couple of months later, water began to seep up through the hatch. Call the car again - and history repeats itself with enviable regularity. Apparently, the hydrological balance of the well and the surrounding soil was disrupted, and drainage qualities dropped several times.

It’s also a shame that the arriving car literally pumped out only water, since there was a minimum of solid waste. I have been using bioadditives for a long time, and the bacteria work well, so that practically no sludge accumulates.

Paying a lot of money for pumping water is, of course, unreasonable. Each call costs 200 of our rubles (the approximate ratio to the Russian ruble is 1:5.5, that is, one pumpout costs about 1,100 rubles). And after a year and a half of torment, it was decided to distill the water from the sewage pit into the storm pit, into which, as already mentioned, the kitchen drain. From there, the water goes into the drainage “with a whistle”, and an approximately stable level is always maintained in the hole.

Laying pipes for overflowing water by gravity was considered unprofitable, since the entire yard is paved concrete slabs(still from the old owners). And so a fecal submersible pump was purchased.

The model cannot be called a brand, but these are the features of our unrecognized region - high-quality equipment It's very difficult to get here with a factory warranty. The packaging indicated that it was made in Russia, Chelyabinsk, but no accompanying documents were included, although the pump was purchased at the largest specialized plumbing store in the city.

However, the price of the issue was very satisfactory - exactly 1000 of our rubles (in Russian rubles, therefore - 5500 rubles).

And with the help of this pump, water has already been pumped from one pit to another four times - that is, 800 rubles for calling a sewer truck have already been “recovered.”

The last time this was done was this morning, June 4th. It rained heavily for more than a week, and the cesspool “made itself felt.”

The pumping process has already been worked out and can be completed by one person in literally 15–20 minutes.

Illustration	Brief description of the operation performed
	Here it is - the cast-iron hatch of the cesspool. Located in the center of a paved courtyard.
	The yard has a fairly significant slope towards the gate, and in front of the gate there is a storm drain covered with a grate. It leads to the second pit, where we will pump water from the first. The straight line distance between the pits is about 12 meters.
	The slight “debacle” was caused by the fact that work had begun on installing a new plastic hatch on the storm pit - there was a wooden one there, already pretty rotten. Work was temporarily suspended due to prolonged rains. The hatch frame has already been installed, but is not yet fully embedded in the mortar.
	This is the hatch itself, awaiting final installation.
	From the very beginning it was decided not to use a long flexible sleeve, in order to avoid twisting, fraying, etc. A set of three-meter 50 mm sewer pipes was purchased - and it turned out to be more profitable in terms of money. The cat appears in the frame for the second time: this is not because I like to “post cats” - this weasel just loves to “help”, no matter what I do.
	For direct connection to the pump, a 50 mm piece of flexible hose was used, the length being the depth of lowering the pump into the pit. By the way, the standard clamp with a bolt that came with the pump turned out to be of little use - it was replaced with a worm clamp. On the other side, the hose ends with a 90° bend - this time for connection to the pipe.
	During the second pumping, a small emergency occurred - a strong pressure at the point where the flow direction changed tore off the outlet from the socket of a straight section of the pipe. At that time, it was still possible to avoid an “odorous shower,” but then measures were taken - the connection is fixed with self-tapping screws: they do not take long to remove or screw into the drilled holes.
	Assembling a straight section is a matter of one minute...
	A flexible sleeve is also used on the opposite side. This is due to the fact that it is necessary to insert the pipe into the storm drain channel. This measure is temporary, and after the hatch is ready, a straight structure ending in a rectangular outlet will be used.
	The storm grate is raised and the pipe is inserted into a channel that goes into a storage and drainage well (pit).
	To suspend the pump in a cesspool, the most inexpensive option is used - a 12 mm nylon rope - this will be quite enough. For ease of lowering and lifting, knots are tied on it. The loop will be suspended from a piece of steel angle placed on top of the open hatch.
	Everything is prepared - you can open the hatch. Yesterday the water came out. Today the level has dropped somewhat, but is still critical. Any use of even 50 liters of water will result in overflow.
	Carefully releasing the rope (under no circumstances - not by the power cable!), lower the pump into the sump pit.
	Fully ready to start pumping. The procedure was initially planned to be carried out in visual control mode, so we did not bother with the float switch.
	We plug in the power cable and watch the process.
	The hum of the pump is practically inaudible, only a slight vibration. The water level is rapidly falling before our eyes.
	At the other end of the “main”, the flexible hose was inflated from the pressure of the pumped water.
	The pumping lasted 8 minutes. About three cubic meters of water (the hole expands much from the neck down) were transferred to the drainage well. Now for 2-3 months there will be no problems.
	It is advisable to flush the pump immediately. Place it in a container with water and turn it on for 10÷15 seconds. At the same time, we supply water into the container through a garden hose. The inside of the working chamber of the pump and at the same time all the hoses and pipes are washed.
	The cesspool hatch is in place. We disassemble the pipe connections and put them in the garage for storage until next time.
	We rinse the pump and the hose attached to it from above thoroughly with water pressure, and can also be sent for storage.

So, the whole procedure took about 15–20 minutes, without the involvement of assistants, and this also takes into account pauses for photography. By the way, driving a sewage disposal truck into the yard and its work sometimes took even more time.

Conclusions:

• First, I don’t regret purchasing a submersible fecal pump, since I got the opportunity to periodically clean the cesspool of water on my own. The call for a sewage disposal truck is postponed until a very distant future, until the moment when circumstances force the pumping out of bottom silty sediments. But, judging by observations, such a need is not expected in the next few years.
• And the second one. Guided by my own experience, I will take the liberty of giving advice - do not pump the cesspool dry with a sewage disposal machine while it is able to cope with water drainage on its own! I won’t let sewage trucks near my second, “working” well at any cost!

If you are the owner of a country house or summer cottage, then you have probably been faced with the question of how to solve the problem of getting rid of contaminated wastewater. An excellent solution is to use a household fecal pump equipped with a grinder. It allows you to conveniently pump out wastewater.

The need to use a fecal pump

A pump for fecal matter is simply irreplaceable in cases where a problem arises in arranging a septic tank. With the help of pumping equipment, you can easily solve the issue of cleaning a cesspool. Such devices even work with contaminants that have foreign inclusions such as grains of sand, stones and solid debris. The water may contain residues of dirt, silt, and household waste. A fecal matter pump will make it easy to solve maintenance or toilet issues. Using this unit, you can clear pits and containers of sediment and empty them for the winter. open pool, as well as eliminate spring floods in basements and ground floors. If you are the owner of a house where the internal sewerage distribution is equipped with pipes that have a small diameter, then the use of the described equipment will be simply necessary.

Key Features

If you install the described equipment behind the toilet, it will be able to easily grind all kinds of particles that will be discharged into a centralized riser. A fecal pump may also be needed for uninterrupted operation sewerage installed in public places. This is especially true when the daily flow of visitors puts a strain on the system.

Main factors for choosing a pump

If you decide to purchase a pump for fecal matter, you must decide what tasks the equipment will perform, as well as what loads will be placed on it. Professional and domestic installations are designed for contact with acids, alkalis and aggressive liquids. If we are talking about household pumps, then the parts and components in them are made using impact-resistant plastic that is resistant to chemical influences. If a more impressive load will be placed on the equipment, then you should prefer a device whose body is made of solid cast iron or stainless steel. Thanks to such differences, the unit will have higher performance characteristics and will last for a long time. When choosing a pump for fecal matter with a grinder, you should pay attention to performance; this parameter largely depends on power. When choosing a device, you need to focus on the number of people living in the house and the maximum depth of the cesspool.

What else should you pay attention to?

When choosing productivity, it is important to consider the distance to the point where the sewage will go. If you take these characteristics into account, you will be able to eliminate the possibility of unnecessary expenses, since the difference in cost between devices can be impressive.

Expert opinion on when to choose a submersible pump option

The fecal pump with grinder can be surface-mounted, semi-submersible or submersible. Such equipment can be installed permanently or temporarily; in the latter case, we are talking about one-time work. The submersible type of pump is a monoblock, which must be completely in a liquid medium and installed at the bottom storage tank. A household submersible pump for fecal matter, according to experts, should be purchased by consumers who set the device the task of periodically pumping wastewater. Here we can talk about a cesspool or cleaning a toilet. If you are interested in high productivity, then you should choose this particular variety, which is widely used in industry and private households. Experts say that such pumps have no competitors in terms of waterproofing and resistance to adverse environments. The described pumps for fecal matter, photos of which are presented in the article, can easily lift 400 liters of liquid to a 20-meter height within an hour. This is true for units with a power of 40 kilowatts.

Consumer reviews of submersible pumps

When installing pumps for fecal matter, according to users, it is necessary to ensure seat, which is equipped with steel guides. With their help you can easily position the equipment in the desired direction. Home craftsmen are advised to provide a strong cable or rope, which will be useful for lowering the device. According to users who have been using fecal matter for a long time, the only drawback of such equipment is the limitation temperature regime. Due to the fact that the pump motor is cooled by the pumped liquid, its temperature should not be higher than 40 degrees. Only this way, according to consumers, will it be possible to eliminate the possibility of the engine overheating when running dry. A number of models are equipped with a system automatic shutdown, which is activated by

If you decide to buy a pump for fecal matter, reviews of which you should read first, then you can incline your choice to the side of semi-submersible equipment. Such devices must be installed on the surface using a special float. The pumping part is placed in the drain, and the engine remains outside the sump. The length of the hose limits the immersion depth of the device. Experts emphasize that it is enough important point is the small diameter of the channels of submersible pumps household type. This limits the scope of use of this equipment, since the units are rarely equipped with cutting mechanisms. As a rule, such equipment is used to remove liquid waste and those containing oil inclusions. Among other things, such equipment can be used to clean toilets from fecal matter with solid inclusions. The latter can have a diameter within 50 millimeters. These sludge pumps are most often made from materials that do not effectively resist corrosion. However, if you focus on the operating principle of such units, then you should not focus on this parameter.

Expert opinion on surface aggregates

If you are looking for a pump for fecal matter for a summer residence, then you can also choose a surface unit. These models have a cutting mechanism that is located near the outer edge of the cesspool. Only the hose will be immersed in the liquid. According to experts, such pumps are easy to install. Among the main positive features of such units are their low cost, especially when compared with other types of fecal pumps; as well as the possibility of using the unit for cleaning toilets and cesspools, which are located at a distance from each other.

A submersible fecal pump with a grinder can come to the rescue. You can also purchase a semi-submersible or surface model, depending on specific conditions. Despite the differences in technical characteristics and different ways installation of these products, they all have a common fundamental difference from machines for other purposes - the ability to process large, but soft, long-fiber inclusions.

It seems that the name determines for what purposes a fecal pump with a grinder is used - for septic tanks, etc. In fact, the scope of application of such units is much wider. Special devices capable of grinding not only feces, but also other organic inclusions– fallen leaves, algae, food waste, etc. This ensures the passage of contaminated wastewater through the pump, reducing the load on the motor and the likelihood of it jamming. This makes household sewage pumps with a grinder suitable for transporting stormwater, rainwater with leaves, kitchen sink and dishwasher drainage.

• Models with shredders are suitable for sewer systems where because of large quantity users cannot control the absence of foreign objects in drains - in campsites, in enterprises.
• Their use in catering units is effective, where vegetable peelings and food residues from washing dishes end up in the drain.
• Using units of this type, you can pump water from natural reservoirs and flooded pits for drainage, as well as supply water containing sludge (organic fertilizer) from a lake or pond for irrigation.

The photo shows a fecal pump and grinders

Sewage pumps are also necessary in cases where the sewer system is made of pipes with a small cross-section (up to 50 mm).

Principle of operation

Grinding of soft (in most cases organic) inclusions in units of this type can be done in various ways.

• The impeller is of a special shape - a screw cone with blades sharpened on the outside.
• A scissor effect created by placing sharp-edged blades close to the lower inner surface of the cylinder.
• Separately, but coaxially with the impeller, knives are installed in front of the chamber entrance.
• The blade unit is installed separately and operates using a gear transmission.

Otherwise, the operating principle and design of fecal pumps are practically no different from similar parameters of drainage models. Pumping units with grinders also consist of a housing, an electric motor (for household models- designed for power supply 220, and for industrial - 380 volts).

One more distinctive feature fecal models is the use of durable and chemical-resistant materials for the manufacture of the body and main components of the units. This allows you to use a fecal pump with a cutting mechanism without any risk of getting abrasive damage when sand or other small solid impurities get into the drains, as well as when there are aggressive substances in the water (for example, cleaning agents, detergents, disinfectants).

Materials for the manufacture of the case can be:

• stainless steel,
• cast iron,
• plastic (budget models not designed for very intensive use).

The shaft with knives and the impeller can be made of stainless steel or steel with a protective coating (against corrosion and the abrasive effects of impurities).

Types of models

All pumping units can be divided into three types according to location and method of installation.

• Submersible a fecal pump with a grinder for pumping out cesspools or other reservoirs operates in the water column. Its advantage is a large lifting capability, crushing inclusions with a diameter of up to 50 mm. The disadvantage of this option is the complexity of inspection, maintenance and repair of equipment.

  

• Superficial the units are located on land, wastewater enters the chamber through a special pipe or hose with a large diameter.
  Such surface fecal pumps are used when the size of inclusions is no more than 5 mm, since they do not have a grinder

  If sewer riser, the septic tank or cesspool is located above the level of the drain point (for example, when the toilet or washing machine is located in basement), a special surface unit is installed next to the drain point (toilet, kitchen sink etc.).

  

• Semi-submersible pumps are installed in most cases in waterproofed receiving wells and do not have grinders. The particle diameter should be no more than 15 mm.

  In a semi-submersible fecal pump, the suction part is immersed in liquid, and the motor is on the surface, which ensures its air cooling

You can classify technology by area of ​​application:

• Industrial fecal pumps with a grinder, which include units for large facilities (enterprises, repair shops, office buildings and institutions), as well as models that transport liquid from the collector of a residential building to the central pipeline of the system, and are used to empty septic tanks or cesspools (although low-power units of this type can be classified as household).
• Go to category household appliances include pumps for toilets and kitchens installed in apartments and private houses.

An important parameter for evaluating and comparing models when choosing is the ability of pumping units to withstand high liquid temperatures.

• A fecal pump with a grinder, used only in the toilet, is usually chosen to work with liquids at low temperatures.
• Models for the kitchen or general collector, where the washing machine and dishwasher drains are discharged, can withstand temperatures up to 80-90° C.

Pump installation

The method of installing the pump depends on its type, and that, to a certain extent, on the operating mode.

For permanent work

For constant pumping of wastewater, it is advisable to choose a submersible or semi-submersible model of a fecal pump. Speaking of semi-submersible pumps, they installed permanently and dismantled only during repairs. The best place to install units of this type is a specially constructed receiving well. Its overall dimensions must be no less than 500x500x500 mm. The receiving well is a kind of storage tank into which all the pipes of the system are inserted (for example, a branch from a house, a bathhouse, an outdoor shower, etc.).

An important nuance of installing units of this type is the need to fine-tune the automation. The pump shutdown threshold should ensure that the well is constantly maintained in a nearly empty state, while preventing air entrapment.

For periodic pumping

Periodically submersible fecal pump with grinder for summer cottage used when emptying the contents of septic tanks or cesspools. In this case, it is not advisable to install a stationary semi-submersible or surface unit. When using portable submersible models, it is important to ensure smooth and accurate installation of the unit into place, for which a cable and special guides are often used. Moving along them, the pump takes correct position, and after emptying the tank it is removed in the same way.

To extend the service life of equipment, submersible fecal pumps with a grinder for giving before storage during breaks in operation, they must be cleaned and dried, after which they are sent to a dry, heated room (utility room, pantry, garage, etc.).

Submersible sewage pumps can also be installed permanently

Units for toilets in houses and apartments

Household models for toilets are designed for a wide range of consumers, therefore their design is as unified as possible and does not require complex work During installation, there is no need to configure the equipment.

All structural elements are placed in one case made of durable plastic, so the user does not need to perform assembly. On the same body there are connecting flanges with sealing tabs (it is used to directly connect the pump to the toilet). The connection in the sewer pipelines is carried out using special pipes. Their number may vary; the presence of more than one pipe makes it possible to connect additional drain points to the pump.

The pumping unit is turned on automatically - the engine turns on immediately when liquid enters the system and turns off when the container is emptied.

We talked in more detail about the toilet and its use in a separate article.

Popular sewerage units are from the Danish manufacturer of the same name. We have an overview of various models on our website.

You can get advice on choosing a hydraulic accumulator.

Popular models and brands

Grundfos (SEG series)

Grundfos submersible sewage pumps with a grinder are made of durable and chemical- and temperature-resistant cast iron, and the design allows the models to be installed permanently or transported to other sites. This expands the scope of application of the machines and allows them to be used for autonomous sewer systems, storm drains, drainage of tanks, and supply of water for irrigation from natural reservoirs.

The advantages of the brand's products are:

• increased strength of the one-piece body,
• excellent performance characteristics,
• two protective relays that eliminate the possibility of engine overheating.

The brand's product range includes not only submersible, but also surface fecal pumps with a grinder (Sololift series) for toilet waste.

Gilex (Fekalnik series)

Models from this manufacturer are economical, but they low cost combined with impressive technical capabilities, which makes Gilex pumps popular among household models. Pressure – from 6 to 11 m, maximum size of individual impurity elements – 35 mm, capacity – 150-220 l/min.

Important: Gilex fecal pumps do not have a grinder, take this into account when choosing.

Sprut (model V1300D)

A model of this brand is suitable for those who are looking for a household fecal pump with a grinder, the price of which will be justified by its high performance characteristics. The unit pumps wastewater with temperatures up to +40° C with mechanical impurities up to 5 kg/m3, the maximum size of inclusions is no more than 35 mm.

Herz (WRS series)

Herz fecal pumps compare favorably with their analogues by the presence of protection against possible negative factors(liquid getting into the motor, mechanical damage, overheating, etc.). At the same time, the cost of models when compared with domestic analogues with similar characteristics is only slightly higher.

Herz submersible sewage pump

What to look for when purchasing

• Pump power directly affects its capabilities - productivity, pressure, ability to pump water with a large amount of impurities. But the greater the power, the greater the energy consumption of the unit.
• Housing and main components(knives, impeller, shaft) must be made of durable materials(wear-resistant plastic, cast iron, steel).
• Availability protective devices will ensure trouble-free and safe operation of the pumps. Protection against overheating can be neglected when operating submersible models - they are cooled naturally by the liquid surrounding them. The units should also be equipped with float switches that control the liquid level and check valves that prevent water flow in the opposite direction.
• The most expensive model does not always have the best characteristics.