Buy a submersible drainage pump for dirty water. How to choose a drainage pump for dirty water - practical tips and tricks. Materials used in production

Many owners of private houses have to solve the problem of pumping dirty water on their own. For example, when floods occur in the spring as a result of melting large quantity snow, not every owner has the opportunity to use the services of public utilities, because they are very expensive. But you can also cope with it with the help of buckets big amount there will be no water, because in the first days of the flood it arrives much faster than it is bailed out.

The best option in this difficult case is to use a drainage pump for dirty water. With the help of such a pump, you can pump out water not only from a flood-filled basement, but also from your own swimming pool or decorative pond located on personal plot. By the way, the pump drainage type It is quite suitable not only for pumping out dirty water, but also for watering the garden.

For this purpose, the pump is simply lowered into a nearby reservoir (if there is one), and water is pumped from there through a hose directly to the garden. It should be noted that borehole or well pumps are not suitable for such a purpose, since dirty water is present in natural reservoirs, and such units are designed specifically to work with clean water.

It is for this reason that you should always have a drainage pump for dirty water in your household. The purpose of our article is to provide readers with information on how to choose a drainage pump for dirty water.

The main purpose

Pumps for dirty water are of the drainage type, and therefore their design and application are similar to the principles of operation of fecal pumps. If you want some tips on choosing a sump pump for dirty water, be sure to watch this video:

However, there is a huge difference between these two pump models.

Thus, they are designed more for pumping liquids with a high degree of viscosity, which contain fibrous inclusions. To pump out such liquids, fecal pumps are equipped with special knives that transform large inclusions into a homogeneous fine mass. As for solid inclusions in dirty water, they are strictly contraindicated for fecal pumps, since they can damage not only the cutting elements of the knives, but also the impeller (or rather, its working blades).
The situation is completely different with special pumps specifically designed for pumping dirty water. On the contrary, they cannot work when pumping out liquids with fibrous inclusions, but they can pump out water with solid inclusions without any problems. The design of the drainage pump for dirty water is such that it can be used to pump out dirty water that will contain insoluble (or poorly soluble) particles (for example, sand, silt, pebbles of a certain size). All valid parameters such inclusions must be displayed in the passport attached to the product.

Depending on the model, the drainage pump is capable of work activity with solid particles reaching a diameter of 5 to 50 mm. The design features of drainage pumps for dirty water determine the breadth of their scope, which can be as follows:

Spring floods, abundant snow melting, prolonged rainfall. In this case, the situation may develop in such a way that the storm drains will not be able to cope with the large flow of water. As a result, flooding of the basement floors of cellars and basement areas of residential buildings will occur. In such a situation, a drainage pump will help carry out emergency drainage work.
The drain pump for dirty water can be installed in basement as a stationary device. If the automation is configured correctly, it will carefully monitor the level status groundwater and keep the room dry at all times.
Reservoir maintenance artificial type is another important task that a drainage pump for dirty water can handle. If necessary, it is impossible to drain such a reservoir in order to clean or completely replace the water, or to maintain the required filling level without a high-quality drainage pump.
Prefabricated containers from a domestic or drainage sewer system that do not provide for independent drainage of liquid. Periodically, dirty water is pumped out of them using drainage pumps. The water settled after such pumping is carried out to special filtration fields, centralized collectors or natural bodies of water. Sometimes this water is pumped into reservoirs for the purpose of its further use for technical needs.
Without local cleaning systems, the premises of car washes and auto repair shops cannot function normally. These are the strict rules of sanitary standards. Dirty water in such systems is collected in primary type collectors or pits, and it is pumped out from there using drainage pumps for dirty water.
Fecal pumps for dirty water are also used in the agricultural environment. It is with their help that water is pumped from natural or artificial reservoirs to irrigated agricultural areas.
Drainage pumps for dirty water are known for their versatility. Manufacturers of such pumps create them for use for pumping and pumping dirty water, but nothing prevents the pump from being used for pumping clean water (for example, from a well or well).
A pump for pumping out dirty water can also be used to fill containers located on the high altitude. These can be tanks or barrels included in the autonomous water supply system of residential buildings, water containers installed on an outdoor shower or in a bathhouse.

In Photo No. 1, readers can see a dirty water drain pump in action.

At their core, the described pumps are characterized as drainage pumps and are designed to work with dirty water. However, it is worth understanding that there are many different models of drainage pumps with individual design features. In accordance with them, the specifics of the application are determined.

Each model of drainage pump is accompanied by accompanying documentation, which must indicate information about the sizes of fractions with which the unit can work. The permissible composition of suspended matter is also indicated in such documents.

For example, a drainage pump can pump dirty water that contains elements of inorganic origin (fibrous particles, threads, etc.), animal hair or hair. Such units may well be separated into a separate group. For household needs, experts recommend using drainage pumps, capable of pumping water containing solid particles up to 10-15 mm in size.

Device

Any pump intended for pumping dirty water basically contains a power unit characterized by a certain power level, as well as a working chamber, with the help of which the optimal operating pressure is created for pumping out the liquid. The power unit most often runs on electric current.

The design of the drainage pump will depend on its type and operating parameters. According to their operating principle, such designs are divided into centrifugal, vortex and vibration type pumps.

The design of a centrifugal pump (which, by the way, belongs to surface-type structures intended for pumping out contaminated water) is represented by the following elements:

Housing made of cast iron or stainless steel.
Impeller characterized by open type and also made of stainless steel or brass.
Connecting elements made of stainless steel or cast iron.
The main (drive) shaft is made of chromium-nickel or stainless steel.
The motor is single-phase, equipped with thermal insulation and external ventilation with parameters 2308-50 Hz.

Photo No. 2 shows a schematic design of a drainage pump for pumping out dirty water.

Vibrating drainage pumps are recommended primarily for pumping out clean water, since they are characterized by a high level of sensitivity to various types of impurities. Most drainage pumps are characterized by a centrifugal type device.

The operation of the entire pump structure is carried out in the following sequence.

After the electric motor starts operating, rotation from it is transmitted to the impeller.
Under the influence of pressure from the impeller, water is thrown with force towards outer wall tank, as a result of which a high level of pressure is formed in the outlet pipe. A whole system of valves is installed in the working chamber (more precisely, before entering it), which is necessary to prevent the backflow of dirty water.
Due to the presence of an increased level of pressure in the outlet part of the pump line, a vacuum is formed in the intake section of the drainage pump, which is favorable for the effective absorption of water.

The design of the drainage pump is durable metal case, having magnificent protective characteristics. Submersible drainage pumps are most often made of stainless steel, and surface pump structures are made of composite alloys, steel or cast iron. If the pump model has low power, then the housing for it can be made of impact-resistant polymer material.

The design of the drainage pump impeller, the diameter of the internal channels of the pump, as well as the material from which this element is made, allow the entire structure to work harmoniously, with the ability to pass solid particles of a certain diameter.

In order to prevent larger parts from entering the operating structure, a protective mesh is usually installed on the inlet pipe of the pump, the cells of which have a certain size. If the pump is surface pump, then the mesh is installed in the inlet part of the intake hose.

In Photo No. 3 you can see a schematic representation of a drainage pump immersed in water.

As for the design of the element called the impeller, it may also have some differences depending on the pump model. Here are the main ones:

The most common scheme in accordance with which the pump impeller is designed is one in which there is a single-channel impeller, which allows pumping out liquids with a high degree of viscosity.
The best option when it is necessary to pump large volumes of water would be drainage pumps with an open impeller. Such products will cope equally well with pumping heavily contaminated water and pumping fecal waste.
But if great importance If you have the power of a drainage pump, then the best choice in this case is to purchase a device equipped with a vortex wheel (displaced slightly back, the so-called rotor type). True, this design also has its drawbacks, the main ones being the high level energy costs And high price pump

The operating principles of surface pumps are based solely on visual inspection. But submersible drainage pumps are often equipped with float sensors, which eliminates the need for constant and continuous monitoring of their activity. When equipping submersible pumps with sensor-controllers, manufacturers pursue at least two goals:

A properly adjusted and well-tuned system will help to constantly maintain the optimal water level in the pumped tank. Such a device will allow you to avoid overfilling the container and turn off (or, conversely, turn on) the drainage pump in time.
The automation will immediately respond if any problems arise. emergency cases. For example, it is with its help that the power supply is turned off if the water level drops to critical levels, which causes the pump housing to open. Such situations, in the absence of automatic shutdown, often lead to burnout of the drainage pump and its failure.

Most drainage pump models are designed for pumping cold water with a temperature not higher than 35-40 ºC. If, according to operating conditions, pumping heated (hot) water is expected, then the best option would be to choose a design with the appropriate parameters, which are necessarily indicated in technical documentation to the device.

I would like to draw the readers’ attention to another type of pump, which is often used in construction when it is necessary to pump groundwater from pits. Such pumps are called diaphragm pumps, and are mostly equipped with gasoline engines.

This is very convenient, since construction sites do not always have access to electrical energy. Models of diaphragm drainage pumps with a gasoline engine are installed by manufacturers on special platforms with wheels, which makes it possible to easily move the device from one place to another.

The design of the diaphragm pump is such that it has virtually no moving parts that would create friction against each other during operation. And therefore, such models can well be used for pumping dirty water containing clay, pulp and even small pebbles. This type of pump must be equipped with a reinforced suction hose.

When installing a membrane-type pump, its manufacturers provide for the possibility of draining water from a dug pit directly during construction work. The membrane model of a drainage pump for dirty water consists of the following elements:

A trench or ditch that serves as drainage.
Pit.
Decrease in groundwater level.
Loading drainage.
Diaphragm type surface pump.
Inventory spacers.
Tongue-and-groove fastening.
Suction hose equipped with a filtration protective mesh. the height of this sleeve should not exceed 5-6 meters.

Using a membrane-type drainage pump, builders lower the level of high groundwater during excavation work.

Advantages and disadvantages

The pros and cons of sump pumps largely depend on their type. For example, the positive characteristics of surface pumps include:

High degree of mobility. Surface pumps can be installed on any flat area, and the main condition for their operation is the presence of a nearby electrical network (if the pump is equipped electric motor).
Great power. Surface pumps have the ability to pump dirty water vertically, lifting it from a depth of up to 10 m, and in the horizontal direction such devices can move water several tens of meters.
Wear on the parts of a surface-type drainage pump will be minimal, since the product does not operate under aggressive environmental conditions.
The surface pump can be installed in any room if available flat surface. You can work with such a device in the garage, in the basement, in the house, and in the cellar.

Photo No. 4 shows a surface drainage pump installed directly on the grass, which indicates its mobility.

Most surface pump models can operate continuously for a long period of time.
If we compare the cost of surface pumping units with the price of deep-well, submersible and semi-submersible pumps, it will be significantly lower.

The main disadvantages of a surface pump include the following characteristics:

Inability to operate in deep tanks and wells. Such pumps must not be immersed in water.
The surface pump heats up very quickly, and in the absence of a high-quality cooling system in it, you can only count on short-term operation of the structure.
This type of pumping structure is poorly protected from external weather influences. If the temperature outside is below freezing, then you cannot work with a surface drainage pump.
Surface-type pumps often operate with a high noise level. This happens due to the special design of the engine.
Suction pipes and hoses of surface pumps must be connected correctly. Inexperienced craftsmen will not be able to do this without the help of a specialist. Incorrect installation of the suction pipe will invariably lead to ineffective use of the pump or its rapid breakdown due to a tightened or torn flexible hose.

Photo No. 5 shows the procedure for debugging a drainage pump for pumping out dirty water.

The main advantages of a submersible drainage pump is the ability of this device to pump water from great depths (up to 50 m). it can be installed in deep wells and boreholes. Another advantage of the design is its compact size, as well as the tightness of the housing. The device is easy to operate, and its motor operates almost silently.

Other advantages of a submersible drainage pump include:

The presence of an impact-resistant, corrosion-resistant and well-insulated body, which is to be immersed in a pond or tank with dirty water.
A submersible pump does not require cooling, and excess heat is removed while pumping cold water.
The risk of the device freezing in the cold season is minimized.
The submersible pump operates silently.
The pressure of the water column is very high, which makes it possible to pump water from very great depths.

The main disadvantage of a submersible drainage pump is the same sealed housing. Yes, it, of course, reliably protects the internal contents of the product, but if any breakdowns occur, repairs will not be possible; you will have to replace the unit with a new one. In addition, a submersible drainage pump is strictly not recommended for draining shallow reservoirs.

Such a unit only works correctly when completely immersed in water, and therefore it will not help pump out all the water from shallow reservoirs. During its operation, you should constantly monitor the water level, and if this does not work, the device will fail and burn out. Other disadvantages of a submersible pump for pumping out dirty water include:

Difficulties in preparing for work. First of all, the pump should be correctly immersed in the reservoir, and then the float automatics should be adjusted.
If drainage work is carried out constantly in one place, it becomes necessary to install a special structure with metal guides. With their help, the device is lowered down onto a stationary type intake flange.
The device has special requirements regarding electrical safety. Insulation electrical cables must be complete.

Types of drainage pumps

Most drainage pumps for dirty water are made according to two schemes: surface and submersible. Each of these schemes has its own characteristics, advantages and disadvantages. How the drainage pump works is clearly shown in the following video:

Photo No. 6 shows the range of drainage pumps from various manufacturers.

Superficial

Surface pumps - in them pump unit and the power motor are installed on a dry surface above ground level, not far from the place from which water will be drawn. Sometimes the surface pump is installed on a special float raft.

The advantages of this type of pump lie, first of all, in its mobility and ease of operation. Readers can learn more about the types of drainage pumps from the following video:

The liquid is pumped by such a device through a special hose lowered directly into a reservoir or a special tank filled with dirty water. Such a device can be easily moved from one place to another, but it will only work if there is a power source. However, today there is a better option. It consists in the use of ground-type pumping units operating on diesel fuel.

Photo No. 7 shows a surface-type drainage pump installed to remove dirty water.

Submersible

The operation of a submersible drainage pump occurs somewhat differently than a surface pump. It is completely placed in water, which must be pumped out. The submersible unit is capable of pumping out too dirty water, which contains solid inclusions with a diameter of up to 5 cm. The mechanism is equipped with a large working chamber, and due to this, all debris along with the liquid passes freely out without clogging the unit.

Photo No. 8 shows a submersible drainage sediment for dirty water.

A submersible pump for pumping water is divided into subtypes, namely industrial and household. Naturally, if you need to pump out water in a small summer cottage, then you should not give preference to an industrial drainage pump. Such a device operates at high power, which determines its high performance.

Of course, a device of low power and performance can handle a small volume of water, so it is better not to pay too much for an industrial unit. In addition, you will have to overpay not only for the device itself, but also for the electricity consumed, which an industrial pump consumes in much larger quantities than a household unit that works with small volumes of water.

Photo No. 9 demonstrates the process of constructing a submersible drainage pump.

Help in choosing

Before you buy a drainage pump for pumping out water, you should carefully study its characteristics, and also read the recommendations of specialists on the choice of such devices. We present to our readers the main recommendations.

Purpose of the device. If you decide to buy a drainage pump, you should understand that, regardless of its model, it is intended for pumping dirty water from sewers, tanks, basements, etc. At the same time, each pump model has its own characteristics and features.
Pump type. Units for pumping water can be of the surface or submersible type. Which one to choose, everyone decides individually, focusing on the features of further operation. The surface pump is mounted in close proximity to the reservoir, and only the suction hose is immersed in the water from it. A surface pump is used only for short-term operation; it is capable of pumping only not too contaminated water from a depth of no more than 5 m. Moreover, during the cold winter period, the operation of surface-type drainage pumps is very difficult. If you need a unit for pumping water from great depths, then the best option would be to buy a submersible pump. It will not only help pump water from great depths, but will also be able to work effectively with liquids containing solid fractions of various sizes.
Features of automation installation. There must be a protective mesh in front of the pump blades (called the impeller). It would be good if the drainage pump is also equipped with overheating protection and an automatic shutdown function if the water level drops.

In order to choose the right drainage pump for removing dirty water, you should know the operating principles of such mechanisms, as well as their components. Photo No. 10 shows a detailed design of the drainage pump.

Performance of the pumping unit. To choose the right drainage pump, you should do some calculation work in advance. Construction specialists advise when making calculations to make a reserve of approximately 25-30%. You should also pay attention to exactly how the suction pipe is located. If it is located at the bottom, then all the water will be pumped from the reservoir using such a pump, and even along with dirt and solid particles. If the nozzle is located at the top of the pump housing, then the water from the reservoir will not be completely pumped out; some part of it will still remain in the container. For example, using a drainage pump with a top suction pipe will not be able to completely pump out all the water from the drainage well.

How to use and maintain correctly

The operation and maintenance of drainage pumps for pumping water depend on what type a particular unit belongs to. For example, a surface pump should never be completely immersed in water, since the device is only suitable for operation on land. Also, surface pumping units are not recommended for pumping clean water. Details about drainage pumps for pumping dirty water are described in the following video:

Manufacturers create such devices only for pumping dirty liquids, making the suction openings wide enough and thereby orienting them to the presence of small-diameter solid particles in the water.

In Photo No. 11 you can see how the drainage pump is immersed in dirty water.

There are several important rules in accordance with which the drainage pump should be operated.

If the pump for pumping water is of the surface type, then special attention should be paid correct connection him with electrical network. It's better to do this with automatic device, which differentiates the supply of electricity and thereby protects the unit from burnout and possible failure as a result of a sudden surge in voltage.
If there are solid inclusions of large diameter (more than 5 cm) in the water, then it is better not to pump it out with a surface pump. A submersible pumping unit should be selected for this purpose.
If there is a need to pump out aggressive liquids, solvents, gasoline, kerosene, flammable liquids, oily and caustic compounds, petroleum products, then a surface pump is not suitable for such purposes.
You should not give preference to a surface-type pump even if you need to pump out liquids containing insoluble particles (for example, tree branches, metal or plastic debris, other solid debris). If this requirement is not taken into account, the surface pump will quickly fail.
Do not move the pump from place to place, transport it, tilt or shake it while pumping water.
If the outside air temperature drops below 0 ºC, then the surface pump cannot be used. To prevent the water pumping system from freezing, it should either be placed in a closed and warm room, or properly insulated.

Prices

Prices for drainage pumps for dirty water may vary depending on the brand, country of manufacture, and brand popularity. Note that most of models of drainage pumps used for pumping dirty water belong to the middle price category.

Sometimes prices for such units may differ depending on the region of their sale. The difference in price is, on average, 1500-2000 rubles. Here are some examples of prices for drainage pumps from different manufacturers.

Aiken is a Chinese manufacturer of drainage pumps that sets the price for its product at 2,950 rubles.
Grunfos Unilift is a surface pump for pumping dirty water of class SS 5 A1, costing 7,400 rubles.
Grunfos Unilift is a surface pump for pumping dirty water of class AP 12, manufactured in Denmark. Its cost is 17,350 rubles.
Pedrollo is an Italian-made drainage pump for pumping out dirty water, characterized by class D 20 and priced at 13,820 rubles.
Al-ko Drain is a German-made submersible pump. It is characterized by a productivity of 187 liters per minute and the ability to lift dirty liquid from a depth of up to 9 m. The cost of the device is approximately 3,000 rubles.
Gilex is a surface pump for pumping water from Russian manufacturers. It can create a pressure of up to 11 m, is equipped with an electrical cord about 10 m long, capable of increasing by 2.5 and even 4 times using standard connectors. You can buy a drainage pump of the Gilex model at a cost of 4,990 rubles.

Photo No. 12 shows several models of drainage pumps for dirty water. The price of each of them differs depending on the functions performed, power and other important performance characteristics.

Most owners of suburban areas are faced with spring flooding of the basement at the dacha, the need to pump dirty water from a pond, swimming pool, or simply watering beds from a nearby reservoir that is also not clean.

Conventional ones used for collecting drinking water from wells and wells are not suitable for working in such conditions - they are sensitive to even the smallest impurities. For example, very fine sand can damage pumping equipment, seriously damaging its working components.

Especially for dirty work, the industry produces a special type of self-priming drainage pumps. They provide protection from debris and dirt in the form of a mesh filter. You should have information about it.

Main types

Drainage pumps handle not only dirty water, but also denser liquids such as the contents of sewers and fecal drains. According to their own technical capabilities and areas of use they are divided into:

for wells - used to clean the bottom of silt deposits;
fecal - equipped with special filters that can retain fibrous contents such as hair or threads;
actual drainage - used for pumping not very dirty water from basements and swimming pools;
borehole – designed for cleaning drinking and technical wells from silt and sand.

Each pump has relevant information in its technical data sheet (the size and type of particles for which the protective filter is designed are indicated).

The equipment is also divided into two large groups:

surface pumps;
descending into water, that is, submersible.

Surface pump

Surface-type units are often called garden units, as they are designed for very little water pollution. Particles of dirt and impurities should not exceed one centimeter!

To operate, the pump is attached to a special platform (platform), and the liquid intake hose is lowered into a working volume filled with water. For example, in a home pool.

Pumps of this type do not have a long service life. They are designed for occasional use. Daily pumping of water, for example, from a public reservoir for the purpose of irrigation, is guaranteed to damage the device.

Advantages:

ease of maintenance and installation;
can be used anywhere where it is possible to connect to the electrical network.

Flaws:

cannot be used for working at great depths (maximum five meters);
short service life;
increased noise in metal models;
short service life of plastic cases.

In winter, such a pump cannot be used outside.

Submersible pump

Submersible units are fairly reliable pumps that are lowered to the bottom of a well, borehole, pool or placed on the floor in the basement to collect water. Capable of handling heavily contaminated liquids. The permissible size of dirt impurities is five centimeters.

Dirt passes freely through the wide chamber of the housing without causing damage to the pump. Such devices can be used for household and industrial purposes. The former will fully satisfy the needs of owners of country houses and plots - they are quite economical in electricity consumption and have good technical characteristics. Industrial designs are massive and powerful units with high energy consumption that will not reveal their potential when used for domestic needs.

Advantages:

reliability;
versatility.

Flaws:

high price;
the need to take into account all technical parameters (a mistake when purchasing is possible).

Submersible pumps will work efficiently if the owners paid attention to the following when purchasing them: characteristics:

The location of the suction hole - the lower it is, the more thoroughly dirt and water will be removed from the bottom or floor. In reservoirs with a muddy bottom, as well as in very polluted wells and boreholes, the unit must not be lowered to the bottom. A strong flow of dirt will prevent the pump from working. It must be raised above the bottom level or placed on a stand. There are also models with a water intake in the upper part of the body. For them, placement in bottom mud is not critical.
Automatic shutdown- an expensive but practical option. The owners do not need to stand near the switched on unit. As soon as the water runs out, the signal float will turn off the pump automatically and protect it from overheating during dry running.
Performance is a parameter that affects the scope of application of the device. It is believed that a capacity of 120 liters per minute is sufficient for irrigation. But for pumping out you will need a more powerful unit.

Submersible drainage pumps are an important component of the maintenance of wells and wells, which must be cleaned regularly. Chlorinating the source, cleaning its walls, replacing the bottom filter - all these important procedures are invariably associated with pumping out muddy water.

Such a pump will also be an invaluable assistant during construction work. With its help, you can easily and quickly pump out moisture from construction pits.

Universal pump

Universal models. This type can easily include pumps designed for feces. They work completely immersed in liquid.

Advantages:

power;
strength and reliability;
long service life;
the presence of a grinder inside the housing (designed for solid impurities);
can be used for working in very dirty water.

Flaws:

high price.

With this reliable unit you can clean any sewage pit, as well as water your garden using a dirty pond.

In the latter case, the plants will receive not only moisture, but also high-quality fertilizer from the bottom of the reservoir.

Model overview

Pedrollo VXm 10/35 – bright representative family of fecal pumps from an Italian manufacturer. Works with very dirty water containing abrasive substances and heavy impurities. Productivity 18 cubic meters at one o'clock. Creates a pressure of up to two meters. It belongs to household appliances and has low energy consumption - 750 W per hour. Market price from 13,000 rubles.
Karcher SDP 14000 is a drainage pump with impeccable German quality. Works with water containing an average amount of dirt particles. The recommended size of solid dirt elements is up to two centimeters. The built-in filter reliably protects the device from abrasive impurities and elements of the specified size. Capable of lifting liquid from a depth of eight meters, creating a pressure of 0.8 bar. It has extremely high productivity - pumps out up to 14,000 liters per hour. Power 800 Watt, applies to household models. The body is made of plastic. Average price from 8,000 rubles.
Grundfos KP 350-A-1 is a high-quality drainage unit supplied to world markets by the company of the same name from Denmark, a leader in the production of pumping equipment. Works with clean water and water containing small impurities. Copes perfectly with pumping water from drains located under shower stalls and washing machines. It has a capacity of up to 14 cubic meters of water per hour. Creates a head of nine meters with a pressure of 10 bar. The case is made of stainless steel. Applies to devices household type. It is quite economical in terms of energy consumption - the power is 700 Watts. Average price from 27,000 rubles.

If in a suburban area there is still no power supply to the house, but an acute emergency has arisen the need to pump out dirty water, owners can use a manual pump. It is not cheap, about 9,000 rubles. The main advantage of such a device is its absolute independence from power supply. When purchasing a pump, you should also pay attention to the size of solid mud particles, in the presence of which technical passport operation of a specific device is permitted.

The problem of pumping out melted and storm water is well known to most owners of country houses and summer cottages. Therefore, sooner or later, each of them has to think about how to choose a drainage pump for pumping out dirty water, because it is very physically difficult to get rid of it using buckets, and calling utility services is not very cheap. So, buying such a drainage pump can be a real salvation for the household, especially since, together with pumping out water formed during a heavy rain or flood, the pump can help solve many household problems. For example, you can use it to quickly pump water out of a pool or pond and even water your garden by lowering the hose into a water source located in close proximity to your home. Moreover, drainage pumps can be called more convenient and versatile compared to devices designed to work inside wells and wells, since they can pump not only clean, but also heavily contaminated water.

According to the method of fluid intake, drainage pumps for dirty water divided into two types: submersible and surface.

Surface Type Pumps are used for pumping liquids with a low level of contamination, containing particles of fractional size, not exceeding 10 mm. To begin work, the surface drainage must be placed on a hard, flat surface, lowered to the bottom of the reservoir or room being cleaned inlet pipe, coming from the device. A distinctive feature of units of this type is their low power, so they are more suitable for occasional use. For example, with their help you can effectively clean a flooded basement once or twice a season and water your garden from time to time. Submersible drainage pumps during operation they are placed at the bottom of the water intake source. Designed for pumping contaminated water containing large particles up to 5 cm in size.

Important: To clean a septic tank or cesspool you need to use a special pump to pump out dirty water, called fecal. Its difference from a drainage pump lies in the presence in its design of a special grinder that crushes all solid particles present in the wastewater. Thanks to this device, the fecal pump does not become clogged and works more efficiently in heavily polluted waters with various fibrous inclusions.

The advantages of both types of pumps, as well as their “weaknesses”, are presented in the following table:

Superficial		Submersible
Advantages	Flaws	Advantages	Flaws
Mobile and lightweight; Easy to install and disassemble; Minimum maintenance and care, consisting only of cleaning and lubrication of parts	Not intended for use in wells and wells with great depth; Cannot be used outdoors at sub-zero temperatures; Noise during operation	Suitable for deep reservoirs and pits; Light weight and small size; Almost silent in operation; Capable of pumping water with large impurities	Difficulty in maintenance (the pump must be constantly removed from the water); Difficulty in maintenance and cleaning due to the special design of the housing

Please note that a submersible pump for pumping out dirty water is mainly intended for use in deep wells or for pumping out heavily contaminated water, so if you need to pump out a small amount of relatively clean water, it is not advisable to use it. To do this, it is better to use a pump with surface intake.

Application and operating conditions

Due to their practicality and versatility, drainage pumps for pumping out dirty water have a fairly wide range of applications on an industrial and domestic scale. In particular, they are used for the following purposes:

Pumping water in case of breaks and accidents of the centralized sewerage pipeline.
Drainage of basements and basements when they are flooded with flood waters.
Removal excess water accumulated as a result of intense and prolonged precipitation.
Cleaning of artificial reservoirs (swimming pools, ponds, etc.).
Irrigation of large areas using the drip irrigation method.

To ensure that drainage pumps function correctly and smoothly, The following conditions must be met:

Pump operating temperature: no more than +40 ⁰С.
Density of liquid intended for pumping: 1000-1200 kg/m3.
Presence of solid impurities: no more than 10%.
Voltage: for industrial pumps – three-phase, 380 V; for households - single-phase, 220 V.
Frequency: 50 Hz.

Device and principle of operation

Drainage garden pump for dirty water is a compact device consisting of a housing with a pump unit and an electric motor inside. An electric motor consists of a stator, rotor and bearing units. A centrifugal impeller is located on the rotor shaft. As a rule, it is made of durable, wear-resistant materials: stainless steel, cast iron, plastic, which may vary depending on the scope of use and power of the device.

The working chamber of the drainage pump is quite capacious and spacious, thanks to which large elements present in the water pass freely from the suction grille to the outlet pipe without affecting the performance of the device. However, this does not mean that such a pump can suck up particles of any size. His Bottom part equipped with a suction grille having two rows of holes that allow impurities of a certain diameter to pass through. For example, 5, 25 mm, etc.

The pump package may include temperature relay, which automatically turns off the device if it overheats. Many modern pump models are also equipped with a special protection against dry running. This is a float switch that turns off the pump motor when the water drops below a set level.

Submersible and surface drainage pumps can operate on the vortex, centrifugal and vibration principles. At the same time, vibration-type units, due to their sensitivity to the content of impurities in the liquid, are designed for pumping clean water. Devices that pump out highly contaminated liquids most often operate using a centrifugal design. Mechanism of action: A running electric motor transmits rotation to the impeller, which throws water towards outer surface pump chamber, which creates high pressure in the outlet pipe. The working chamber is equipped with a system of valves installed at its inlet to prevent reverse flow of water. Due to the occurrence high pressure in the outlet pipe, a vacuum occurs in the intake part of the pump, which ensures the suction of liquid.

Selection rules

To decide which drainage pump is best for dirty water, you must first decide what tasks it will perform, taking into account the following factors:

Type of pumped liquid.

That is, if you have to pump out clean water, without any admixtures of sand, silt and other contaminants, you can use models with a small nominal diameter. To clean construction pits, cesspools and other places with heavy contamination, it is necessary to use appropriate types of pumps equipped with special filters.

Performance.

In this case, you should focus on the nature and degree of use of the pump (the amount of liquid that it has to pump out per unit time), taking into account that raising one meter of water vertically is equal to ten meters pumped out from a horizontal plane.

Please note: models with a power of 200-400 W can pump up to 80-100 liters of liquid per minute. “Middle class” pumps with a power of 400-1000 W - up to 200-300 liters per minute.

Location of the suction pipe.

It can be bottom, side and top. To clean flooded rooms and containers, you should choose models with a lower pipe location. For collecting liquid from silted reservoirs - with an upper one.

Availability of additional functions.

This is an automation system, float start and installation system, protection against overheating and short circuit, etc. When buying a drainage pump for dirty water, before choosing this device, you need to pay attention to the following points:

For a family of 4 people and servicing a plot of 6 acres, a pump with a power of 120 l/min is sufficient.
The device must be connected to the power source using a differential circuit breaker.
Drainage pumps must not be used to pump liquids that are flammable or chemically aggressive.

Prices for drainage pumps

When wondering which drainage pump to choose for dirty water, price is also an important factor in making a decision. Below are estimated prices for some popular models.

Name	Power, W	Capacity, l/min	Water rise height, m	Maximum particle size, mm	Price, rub
GILEKS DRAINER 110/6	200	up to 110	until 6	5	2500
MARINA STF 400 HL	400	up to 140	up to 5	25	4500
Gardena 6000 Classic	220	100	5	25	4100
GRUNDFOS UNILIFT CC 7 A1	380	155	6,5	10	7950

Water is a vital substance for every person. But what to do if it starts to cause a whole lot of trouble? And this happens much more often than you might think. Initially, of course, water is a fairly pure liquid. Especially the one that people use for drinking and household needs. But there are other waters - after the snow melts, after heavy rains. This happens, and then the basements are flooded, and the foundation is washed away, which threatens the destruction of the entire building. These issues have to be resolved somehow, and household drainage pumps for dirty water usually help with this.

What is a drain pump used for?

It is these very useful devices that will be considered now. Naturally, they are used for one single purpose - to pump out excess water, sometimes even contaminated. That is why a drainage pump for dirty water is indispensable in country houses and plots. In addition to this function, it allows you to do other things. For example, swimming pools or pits sometimes also need to pump out water, and these mechanisms help in such cases. So we will consider not only a description of the mechanisms themselves and their operating principle, but also we will deal with another important question: “Drainage pump for dirty water - how to choose the best model?”

Main components

In order not to delve too deeply into the mechanism of the device (which you absolutely do not need), you can simply describe it in a nutshell. So, a drainage pump for dirty water consists of two important parts - a motor and a pump unit. All this is placed in a sealed case. The latter is, at least usually, made from stainless steel. For cheaper models, durable types of plastic are used. The engine impeller is equipped with blades and attached to the rotor shaft.

Principle of operation

Before deciding which drainage pump is best for dirty water, you need to understand how it actually works. It’s not worth going too deep into the design or mechanism of action - that’s for specialists. But the owners of such units need to know the main points. This will help you avoid many mistakes and troubles, both when choosing an element and when using it.

So, the unit, which has already been mentioned as one of the two most important parts of the structure, sucks in water. The whole process takes place through special holes that are equipped with each drainage pump for dirty water. The functionality of the mechanism depends on their diameter: the larger they are, the more contaminated water they can suck out. For ease of operation, such units are equipped with a float switch.

Main characteristics

Before choosing a drainage pump for dirty water, you need to find out in what conditions it will work. This will all affect the range of your options because for different types There are different models of work. You can determine how suitable this or that device is for you, not only by the technical specifications from the manufacturer, but also by reading the section of our article “Drainage pumps for dirty water - reviews.” So, the main characteristics of the devices are as follows:

Suction port location. It is better to purchase household pumps with a lower position. But for industrial devices this does not matter at all.
Frame. It can be either steel or plastic. This will affect the weight and usability of the device. There are also cast iron models, but they are intended for industrial work.
Working chamber. If the water pumped by the device does not contain impurities, then the size of the chamber does not matter. But if the substances in the water are large enough, then the size of the chamber should allow them to pass through it unhindered. Otherwise, it will simply damage the working mechanism.
Design. Household models are usually simpler, and this allows the owner to care for them independently.
Suction device. This is usually a centrifugal mechanism that allows you to suck in both just water and contaminated liquid with various impurities.

Drainage pump for dirty water - how to choose? Materials for parts and housing

This characteristic serves as the main indicator of service life and also greatly influences the price. Pumps can be made from the following materials:

plastic is the least durable and cheapest option;
plastic body and stainless steel working mechanism - such a device lasts longer, but also costs a little more; This best option for household models;
Stainless steel or cast iron provide structures made from them with durability and resistance to damage, but small models made from such materials are rarely produced, and they are quite expensive.

Marking

Vane pumps are usually labeled based on the blade material. The following options are possible:

stainless steel - cheap models;
technopolymer is a durable, resistant to external influences, but quite expensive option.

Classification by installation method

A drainage pump for dirty water is a rather complex device. Therefore, such structures can be installed in different ways. The type of installation determines the operating principle and capabilities of the pumps. According to this criterion, such devices are classified as follows:

Submersible drainage pumps for dirty water - the working mechanism is completely immersed in the pumped-out medium. This is how pools and basements are drained.
Semi-submersible pumps for dirty water. They are used mainly for pumping water from reservoirs and cellars. They are used by immersing the body approximately halfway in water.
A surface drainage pump for dirty water is usually used in stations. This is how they connect to wells and wells. This type of unit allows you to quickly pump out water even from very great depths.

What can extend the life of the pump?

In fact, service life is a very important line in the characteristics of a given element. Which drainage pump for dirty water should you choose? The answer to this question usually lies in how long a particular mechanism can operate. There are several problems that may arise during its operation, but it would be better to describe only the main ones.

For example, during operation of the device, the engine may overheat. Drainage pumps often suffer from this. This is very dangerous because it can lead to serious damage that cannot be fixed. Overheating can be avoided very easily in a simple way: by installing a thermal relay that will monitor the temperature and turn off the engine when it reaches a critical point.

Liquid level

Besides, there is another problem. A drainage pump for dirty water, in principle, can work with any liquid level, but if it is low, this can reduce the service life of the unit. Buying a pump with a built-in float can help here. Not only will this shut off the engine when the fluid level is very low, avoiding mechanical problems, but it can also keep your basement from flooding. The point here is that such devices can be configured to turn on automatically at a certain water level. So, when the snow melts and the rains begin to fall, the water that gets into the basement will not rise above the minimum level required to start the element. And this even in the absence of the owners.

What technical characteristics should you look for when choosing?

There really is no such thing as the best sump pumps for dirty water. All of them are designed to work in different conditions and in different volumes. It is precisely for such, one might say, individual characteristics that such a device should be selected. Otherwise, you can achieve completely different results.

Performance. It is easy to find out, since all manufacturers indicate this characteristic. For household pumps, it is unlikely that a capacity of more than two hundred liters per minute will be needed - for draining a basement, cellar or swimming pool, this is more than enough.
Necessary pressure. It is important to know at what height and distance the water is supplied. Height can be defined as the distance between the immersion level of the device and the points where water exits the nozzle. It must be remembered that ten meters of pipe or hose will mean a loss of one meter of pressure.
Pumped out medium. Here the choice will be what impurities the pump can pass through. This is a very important component, and therefore you need to pay special attention to it.

Drainage pumps for dirty water - reviews

As you've probably already realized, choosing the right device is quite difficult. The point here is not only and not so much the variety of different models on the market. Rather, the problem lies in the multiplicity of pump assembly options.

Thus, users evaluate models made entirely of plastic as very functional. This is mainly because they are lightweight. But there is also a minus: they are not resistant to mechanical damage. And the service life of such mechanisms will not be very long. That is, plastic models are suitable for those who want to save on purchases and at the same time do not intend to pump out water every day. In addition, the plastic mechanism is poorly adapted to dirty water - this must also be remembered.

According to reviews, the most popular among buyers are models that combine plastic case with stainless steel mechanism. These pumps promise lightness, durability and quality performance. However, large masses of water, especially dirty water, cannot be pumped this way. But if you do not plan to use a household pump to pump water from an underground well, then this is definitely your choice.

Cast iron pump models are the most expensive. But the user opinion is that it is not possible to break anything in such a unit. In addition, the operating efficiency will be higher than that of similar models made from other materials.

The most popular pumps are the brands Wilo, Ranger, Makita, IBO.