How to choose a drainage pump: what to look for when choosing a unit?

The best submersible pumps for a well

As the name suggests, these pumps are designed to be fully or partially submerged in water. Among them, well and borehole models are distinguished. Depending on the type chosen, the height of the water column varies from 9 to 200 m. Submersible pumps are characterized by high efficiency (compared to surface models) and the presence of a sealed casing.

Usually they are equipped with a filter and automatic protection against dry running.

Experts also recommend paying attention to the presence of a float that will turn off the power to the pump when a critical water level is reached.

Pedrollo NKM 2/2 GE - pump for wells with moderate energy consumption

5.0

★★★★★
editorial score

100%
buyers recommend this product

A productive and reliable pump that is able to "digest" water with minor mechanical impurities up to 150 grams / 1 m3 without harm to itself. With an immersion depth of 20 m, the unit provides up to 70 liters of water, raising it by 45 m. Also, this model can work stably in networks with a "drawdown" of voltage.

Advantages:

• Reliability.
• Excellent performance.
• Stable operation in polluted water.
• Low power consumption.
• The presence of a float switch.

Flaws:

High cost - 29 thousand.

A very good model for organizing the water supply of a private house. The main thing when using this pump is to take into account the flow rate of the well.

Water cannon PROF 55/50 A DF - for pumping contaminated water

4.9

★★★★★
editorial score

97%
buyers recommend this product

See review

The novelty of this year is a submersible pump with impressive technical characteristics. When submerged to a depth of 30 m, this unit is capable of delivering up to 55 l / min. to a height of up to 50 m. Protection against dry running is provided by a float switch.

The main feature of the device is the floating design of the impeller. This technical solution makes it possible to pump water containing solids up to 2 kg/m3. The cost of the unit is 9500 rubles.

Advantages:

• Good performance and pressure.
• Existence of protection against an overheat.
• Ability to work in water with a high content of mechanical impurities.
• The presence of drainage channels to reduce the load on the engine at start.

Flaws:

Non-return valve included.

A good model for creating an automated water supply system at home. However, its construction requires equipment with additional elements and accessories (hoses, fittings, check valve, etc.) that must be purchased separately.

Karcher SP1 Dirt is a silent model with low power consumption

4.8

★★★★★
editorial score

90%
buyers recommend this product

See review

A reliable submersible pump from a well-known German manufacturer is designed for a maximum performance of 5.5 m3 / h at a depth of immersion up to 7 m. The unit is equipped with a carrying handle, a patented quick connection system, has the ability to work in manual and automatic modes with float switch fixation.

The main feature of Karcher SP is the possibility of stable operation in turbid water with mechanical inclusions up to 2 cm in diameter. At the same time, the price of the device is quite low - 3300 rubles.

Advantages:

• High performance.
• No noise during operation.
• Quality build.
• "Digestion" of large mechanical inclusions.
• Extended warranty (5 years) from the manufacturer.

Flaws:

• There is no inlet filter included.
• Large outlet diameter - 1″.

The extremely low pressure of 4.5 m indicates the narrow specialization of the device. It is suitable for watering the site, draining drainage wells and pools.

Grundfos SB 3-35 M - powerful pump with low starting current

4.7

★★★★★
editorial score

85%
buyers recommend this product

Structurally, this model differs from analogues in the absence of automation, due to which the manufacturer has significantly reduced its cost.The pump is equipped with a 0.8 kW motor, which provides a solid performance of 3 m3/h with a water column of 30 m.

Alas, the cheapening of the device affected its ability to work with polluted water. The device is able to "digest" no more than 50 g/m3 of mechanical impurities. The price of the unit was a little less than 16 thousand.

Advantages:

• Reliability.
• Simplicity of design.
• Good pressure and performance.
• A small load on the power grid when starting the device.

Flaws:

No dry run protection.

A very good model for a private house with increased water consumption. In case of urgent need, the problem of lack of automation is easily solved by purchasing and installing a float switch.

Submersible pumps

Submersible drainage pumps are designed to operate in water. They are optimally used as the main ones for wells, wells and installed in reservoirs for pumping liquid out of them. At the same time, such installations are often not demanding on water quality, which makes them suitable for work in sewer systems.

The main disadvantage is an instant failure in the absence of a pumped medium, but this problem has been solved in most modern models by installing automatic regulators.

Submersible drainage pump GILEX Fekalnik 200/10 - The best solution for sewers

Drainage pump GILEX Fekalnik 200/10 was specially designed to work in sewer systems and other places where the pumped medium is heavily polluted. Due to the immersion depth of up to 8 meters, the device can be used in a variety of places, including open water. At the same time, the pump provides a capacity of up to 12 cubic meters.m / h, which is enough to serve a large house.

The permissible liquid temperature is from 1 to 35 degrees - the pump is able to function all year round. The design of the device is as simple as possible, therefore, if even several elements fail, its repair will not be expensive. At the same time, the pump is quite economical, and at a power of 880 W consumes minimum electricity.

Advantages of the GILEX Fekalnik 200/10 pump:

• Good reliability;
• Low cost;
• maintainability;
• Low noise level.

Installation disadvantages:

• Low operating speed;
• Weak pressure when pumping contaminated media.

PATRIOT F 400 Drainage Pump – Compact Model for Local Applications

A small submersible pump PATRIOT F 400 is well suited for summer work, as the main pump for pumping water for irrigation. The immersion depth of the device is small - only 5 meters, but it is enough to install the pump in a well or pond. The performance of the model is about 8 cubic meters. m / h, which is relatively good for such a "baby".

The pump is not pretentious in terms of water quality, and is able to pump even a heavily polluted environment with small pebbles and debris (up to 2 cm). The built-in automatic float level gauge prevents the possibility of "dry" operation of the device. The pump is connected to a 220 V household network, and the consumption of electrical energy is minimal.

Advantages of the drainage pump PATRIOT F 400:

• Low cost;
• Good performance;
• Ability to pump dirty water;
• Light weight;
• Good reliability.

Disadvantages of the model:

• Poor build quality;
• Large drop in performance when pumping dirty water.

Submersible drainage pump Belamos DWP 450 - The best option for permanent use

The powerful drainage pump Belamos DWP 450 is used for pumping medium and slightly polluted media. The performance of the model is about 12 cubic meters. m / h, and falls slightly even when working with dirty water (unlike competitors). The maximum immersion depth of the pump is 5 meters - installation on the bottom of a well or any reservoir is possible. The device is protected from premature failure by a thermostat.

The pump is quite compact, but it weighs about 18 kg, which makes it difficult to transport

During operation, the device consumes a minimum of electricity, which is important for continuous operation. In addition, it should be noted the long power cord (as much as 5 meters), although you still can’t do without an extension cord

Advantages of the Belamos DWP 450 pump:

• High reliability;
• Cast iron impeller;
• Immunity to debris and small (up to 25 mm) pebbles;
• Quiet work.

Weaknesses of the model:

• High price;
• Inconvenient location of control buttons.

Gileks Drainage 220/12

Compared to previous models, the cable length here is 7 m, so not all pits can be pumped to the bottom. This is a good option for cleaning basements from groundwater, as well as for irrigating vegetable gardens. The device has a compact size, so it fits easily even in small pits. The plastic case is a bit unusual, but it's a big plus because of its resistance to corrosion. The equipment has a long service life, in particular due to the automatic stop of operation by means of a float switch when the liquid level drops.

Advantages:

• Dives to a depth of up to 8 m;
• Fast work;
• Easily pumps out pools;
• Suitable for use with both dirty and clean liquids;
• Housing tightness;
• Reliable water cooling;
• Sophisticated overheating protection system.

Flaws:

• Power consumption - 590 W;
• The warranty is given for 1 year only.

Submersible pumps

These are powerful units that are able to stay in the water throughout the season thanks to a sealed stainless steel case and high-quality insulation.

The diameter of such devices is usually less than 10 cm, since they are designed for narrow wells or boreholes. The unit sinks to the bottom and hangs freely on a cable. Water rises up the hose and then goes directly to the place of irrigation.

Depending on the depth of occurrence and the source of water, several types of submersible pumps are distinguished:

1. Wells - installed in wells. They are immersed in water so that the distance from the bottom is at least 1 m. Thanks to this, the risk of sand getting in when the “reservoir” is shallowing can be avoided. In addition, the pump must be equipped with a warning float. Thanks to this, you can immediately know about a decrease or increase in the water level.
2. Boreholes create a large pressure of water, as they sink to a depth of 20-30 m or more. Since the wells are very narrow, the diameter of such devices is not more than 10 cm. The engine of such pumps is so powerful that it can provide a lifting height of up to 80 m. Like a well, it is fixed on a cable.
3. Drainage are installed in a natural reservoir (pond, lake, river), which are located next to the house.They are equipped with a system of powerful filters, thanks to which the water is immediately cleared of foreign fractions - sand, silt and larger impurities (stones, branches, fish, etc.). The device is equipped with a chopper that cuts leaves and shoots.

Best Inexpensive Drainage Pumps

How to choose a drainage pump?

Prudent owners always have a pumping system in country houses, which can be useful when a basement, cellar or part of the site is flooded. A drainage pump for a well, pool or fountain in our time is not an excess, but a necessity. Regular cleaning of such objects is the key to a long service life, the choice of a drainage system for these purposes requires attention. When buying a drainage system, it is worth deciding which type of pump is more suitable in a particular case: submersible or external. Another important parameters when choosing a drain are:

1. The degree of contamination of the pumped water is an important factor; to work in an environment with foreign particles, it is worth taking care of pumps with filters.
2. The power and performance of the system - how many cubic meters of liquid per hour the pump can pump out, the standard parameters are the figure of 5 - 10 cubic meters. in hour.
3. The head, which determines how far the outgoing liquid can be diverted to the side and to what allowable level the system can raise the liquid. It is considered optimal to raise by 10 m and abduct by 100 m.
4. The permissible immersion depth for pumps is an important parameter.
5. Additional adapters in the kit will help you not to puzzle over the problem of connecting several hoses.
6. The type of housing from which the drainage home pump is made is important for ease of use. Plastic drainage systems are lightweight but short-lived. Cast iron or steel is preferred for submersible pumps operating in aggressive environments.
7. Important elements are the length of the cable, the type of material from which the blades are made, the presence of a handle for carrying the device, a float switch.

Rating of drainage pumps

There are a wide variety of brands of drainage systems available in stores, and it can be difficult to choose the right pump for your specific needs.

TOP-5 of the most famous brands of pumping units, which you should pay attention to, is presented below

1. Drainage pump "Dzhileks 110/8" considered a budget option, ready to meet the needs of a small farm. This is a submersible unit, having a low weight, working with particles up to 5 mm in diameter at a depth of up to 8 m.
2. Drainage surface pump of the domestic brand "Zubr" NS-T3-600 well established in the market of treatment systems. Light weight, decent power and a long warranty period distinguishes this model from others.
3. "Pedrollo Top2" - a submersible pump, which has good characteristics, it can be used for pumping liquids with impurities up to 10 mm. This is a reliable, powerful and productive model, but its immersion depth is only 3 m.
4. Drainage "Grundfos Unilift KR 350 A1" considered the most powerful of most home pumping units. The metal body and ease of maintenance make it an indispensable assistant in the household. The disadvantage of this pump is the high cost compared to other models.
5. Vilo Dry TM 32/7 - an easy-to-use automated pump model operating at a depth of up to 7 m. Low energy consumption and ease of maintenance are the main advantages of this pump.

How to choose a drainage pump?

Before going to the store, try to decide on the main functions that a drainage pump should have. The device will work much longer if it is selected taking into account its specialization.

If you need a pump for constant long-term operation, then you should choose a model that has a durable stainless steel housing, low power consumption, high performance. Models of domestic production are the most convenient to maintain. You can always find parts for repairs.

If you use the pump periodically, then you can save money and purchase a more budget model that will meet your needs.

Design and principle of operation of the equipment

Initially, these devices were created for pumping water from basements flooded with water. Later, the scope of use of drainage pumps expanded. Modern models are designed for pumping lightly contaminated liquids from pits, wells, pools, pumping and cleaning wells.

In addition, they are used in production, included in the technological process. Most devices are capable of pumping liquids with impurities of about 10 mm in size.

Drainage pumps are specific equipment designed for a rather narrow range of work. It is not recommended to use it for other purposes. Despite the fact that drainers are used for cleaning shallow wells and shaft wells, they are not intended for permanent work in them.

The devices cannot work as a fecal pump either, although some "craftsmen" are trying to replace them.

Drainage pumps are designed for pumping and pumping clean or slightly contaminated liquids, can be used for draining small ponds, pumping and cleaning wells

Drainage equipment can only work with lightly contaminated liquids.The amount of solid impurities, depending on the type of apparatus, varies from 3 to 40 mm.

Whereas fecal pumps operate in aggressive liquids with a complete absence of solids. They are necessarily equipped with grinders, which, with the help of special blades, completely eliminate large contaminants.

If we consider the device device in the most general form, it consists of several elements:

• Electrical engine.
• Impeller located on the shaft. Responsible for the movement of fluid inside the device. Can be placed directly on the engine or at some distance from it.
• Pump unit. It is equipped with an intake pipe. The liquid enters the device through the holes in the nozzle. Their diameter determines the size of impurities that the device can handle.
• Sealed body. Inside it are all the working elements.
• Circuit breaker. Turns on and off depending on the liquid level. This prevents the equipment from flooding or its so-called "dry running".

Typical pump diagram:

The design of the drainage pump includes several basic elements, which are presented in the form of a diagram in the figure.

When the device is activated, an electric motor is started, which rotates the shaft with the impeller. A zone with rarefied air is formed around the moving blades, which reduces the pressure inside the chamber.

The liquid is drawn in through the orifices and passes into the device. Here, under the influence of centrifugal force, it is pushed to the outlet, from where it enters the pipe or outlet hose.

For normal operation of the pump, it is important that the amount of solid impurities inside the chamber does not exceed 10% of its volume.One more nuance

Standard drains are not intended for pumping hot liquids.

They can do this for a short time, as the engine of the device cools down, giving off heat to the pumped liquid. If you need to constantly pump hot water, you should choose a special model.

This is interesting: Device and principle of operation classical pumping station water supply

Which brand of drainage pump is better to choose

The TOP describes the products of 10 manufacturers, including many Russian companies. There are brands and budget, and the middle segment, and premium. Here are some of the leaders:

• Zubr is the largest Russian manufacturer of inexpensive and high-quality manual and electrical equipment for the home, garden, and construction. The company was founded in 2005 and offers professional pumps with an average power of 400 to 1000 watts. They have a low noise level, light weight, thoughtful protection against overheating, a long cable, and a durable case.
• Livgidromash - under this brand, goods are supplied to the CIS countries and beyond. They are characterized by a long service life, proven quality, small dimensions, reliable materials. With their help, water is pumped quickly enough, while its temperature can be an average of 50 degrees, and the amount of impurities is within 5%. One of the most popular series of the manufacturer is the "Gnome".
• Quattro Elementi - the company supplies the market with products for the garden and home with the best value for money. There are also drainage pumps with good characteristics in its assortment.The company's devices are distinguished by normal productivity, on average, about 7000 l / h, a decent power of about 600 W and dry cleaning of the tanks. They do not heat up, withstand long-term operation and are easy to use.
• Dzhileks Drainazhnik - the company produces equipment and consumables for working with water, it has devices for pumping it out of wells, wells, pools. Also in assortment there are offers for an irrigation of kitchen gardens. The best submersible drainage pumps of its products are made by good performance, decent power of the order of 800 W, a durable housing, and a heat-protected motor.
• Belamos - the company supplies wheelbarrows, burners, hoses, stoves, pumping equipment to the market. The latter is represented by fountain, borehole, vibration, drainage models, which are divided into submersible and surface. Both of them have excellent power and performance, which increases the efficiency and speed of their work.
• Patriot is an American brand under which a line of premium garden products has been produced for many years. All of them have certificates of quality and safety, serve for quite a long time and show their best side in irrigating gardens, cleaning pools, wells, and wells from water. The company's devices are easy to transport and operate, equipped with long cables and protective mechanisms against overheating.
• Stavr is a Russian brand of garden equipment and electrical equipment. The company operates in the middle price range, but at the same time produces professional devices. They are suitable for both domestic and commercial use, such as construction sites.Its pumps have everything you need for their full use - good power, high performance, long cable.
• Whirlwind is the leader among brands of pumping equipment in Russia. They are high powered, running at an average of 1100 watts. Among their advantages, it is worth highlighting a powerful water supply per hour, a considerable lifting height, and a durable, most often plastic case. The products are compact in size and adequate in weight, so they are easy to use.
• Unipump - the company specializes in the supply of professional high-quality pumps. They have convenient control, are safe for humans and are universal in use. With their help, you can pump water from pits, pools, wells. The equipment behaves well during long-term operation and serves without failures for years.
• Caliber is a budget brand of power tools and garden equipment that entered the Russian market in 2001. With affordable prices, the products have good quality and decent characteristics. Its products can be included in the rating of drainage pumps because of the power of about 800 W, the productivity of about 11 m3 / h, the lifting height of about 8.5 m. On average, their weight is 5.5 kg.

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