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V country houses the water supply system often depends on a well or well, which is equipped at a depth of 8-10 meters. It is not possible to get water from such a depth on your own. Moreover, it is inconvenient to go outside every time you need fresh drinking water. Therefore, the owners of summer cottages and suburban housing should Special attention draw on models submersible devices... They will provide uninterrupted water supply to the home. Let's take a look at how to choose submersible pumps for wells and the principle of the mechanism.

What does it look like submersible pump

The submersible pump works in water. It lifts liquid even from very deep wells and wells to the surface. It is worth distinguishing between well and downhole devices. Wells tend to have a more elongated shape for working in narrow wells and a higher head for lifting water from great depths.

These types have minor differences in the device. Basically, all units consist of the following parts:

• The impeller, which is the main structural element. It sets in motion all other details of the structure;

Instrument impeller

• Wheel blades. They generate centrifugal force, which is necessary for the rapid absorption of water;
• Suction area;
• Impeller housing. He protects him from negative impact the environment;
• Valve - traps water in the pump and prevents its return to the well;
• Safety net - essential for protection drinking water from harmful impurities that can negatively affect the health of the residents of the house.

Submersible unit design

Sectional device

The submersible blower is powered by electricity. It makes the impeller rotate. Thus, the liquid flows from the well or well into the pipeline, which, in turn, conducts water to the water supply system.

As we can see, the principle of operation, as well as the design of the supercharger itself, are elementary. Now let's find out what types of these devices exist and how to choose a submersible pump for a well.

Video: the principle of operation and design of a submersible pump

Classification of submersible units

By design, the following types are distinguished:

• Vibrating- is a structure of a vibrator, an electromagnet and a housing. It is widely used in suburban areas, not only for pumping and delivering water to the house, but also for watering the vegetable garden and garden. Vibrating devices show good performance in terms of pressure and power. Moreover, their price is low;

• Vortex- consists of a discharge area and an electric motor. The first element is used to pump liquid, the second to supply water to the house. This type is capable of lifting water from a depth of 12 meters. In this case, the process takes place quickly enough;

The principle of operation of the vortex type device

Vortex unit

• Centrifugal- a complex of two blocks: working chamber and engine. They pump out up to several hundred liters per hour thanks to the presence of a special centrifugal shaft. However, such devices have one significant drawback: they consume too much.

Centrifugal unit

Criteria for the selection of submersible devices

To make the device suitable for your home, you need to decide on the following parameters:

• Distance from the well to the dwelling. The greater the distance, the more powerful the pump model should be chosen;
• The amount of water consumed. As practice shows, for ordinary families consisting of 4-5 people, the most ordinary medium-power blower is suitable. But if they live in the house large quantity people, it is worth choosing a stronger model;
• Performance. This parameter is measured in liters of fluid that the pump can raise per unit of time. On average, the productivity reaches 4.2 ÷ 4.5 cubic meters. However, if the device is necessary not only for the usual water supply of the home, but also for watering a spacious personal plot, then you should pay attention to models with a capacity of 4.8 cubic meters and above;
• Power. It is indicated in kilowatts. This indicator indicates the volume of supplied water per unit of time. But you should not buy a device on the principle of "the more power, the better." If your family does not need too much water, then take a blower with an average capacity, as a device that is too powerful consumes a lot of energy.

Based on these indicators, you will select the optimal unit for your home, which will serve you for many years in a row.

How to choose a pump for a well: an overview of popular models

Video: Grundfoss well pumps

If you are not sure which submersible pump for a well to choose, see the plate below:

Uninterrupted water supply to a house from a well or well is impossible without the use of highly efficient pumping equipment. If you are faced with the task of raising water from a source from a depth of more than 8 meters, as well as providing a high water pressure in the house, pay attention to submersible models. With their help, you are not only guaranteed to provide the household clean water, but if necessary, you can pump out water from a flooded basement, garage, cesspool.

Varieties of submersible pumps for water

Before making the choice of equipment, you must clearly define the purpose for which it will be used. The characteristics and cost of the unit will depend on this.

Types of submersible pumps:

- well... Used in small private houses and summer cottages, where pumping is required pure water from wells or shallow wells. Well models do not sink to the bottom of the source in order to avoid sediment raising and filter clogging;
- downhole... This equipment has a small diameter and cylindrical shape, due to which it can be placed inside the well to a considerable depth. Choice downhole models should be done depending on parameters such as:

• immersion depth,
• power,
• performance,
• water supply height,
• case diameter,
• the material from which the body is made;
• length of the power cord.

When choosing equipment, special attention should be paid to the diameter of the case. To avoid pump jamming in the well, purchase a device with a diameter 10-12 mm less than the casing section.

- drainage... This device is used to pump out contaminated water from cellars, basements, pits, etc. drain pump it is possible to effectively solve the problem of flooding during the spring snowmelt, heavy precipitation, breakdown of the water supply system, etc. Drainage models are perfect for organizing irrigation and irrigation. The design of the unit allows pumping liquid containing contaminants up to 30 mm in diameter.
-fecal... These devices are designed for pumping liquid from cesspools and septic tanks, removing household waste. Such a pump is cast from drainage models with a higher power and ability to pump water with a high content of contaminants. In most fecal devices, grinders are installed, with the help of which large particles of contaminants are grinded.

Classification of submersible pumps by engine location:

- rod... The motor is located on the surface, separate from the pump itself. Power transmission is via a rod drive;
- rodless... The electric motor is connected to the pump and is in the water. Such units are more popular in comparison with sucker-rod ones.

The diameter of the device can reach 140 mm, however, equipment with a body diameter of 100 mm is most often used for wells and deep wells.

By the principle of operation, submersible models are divided into centrifugal and vibration.

The advantages of vibrating equipment:

Possibility of use in polluted environments;
- low cost;
- a wide range of models.

The disadvantages of these devices include low bandwidth, vibration during operation, low reliability. It is not recommended to install vibration pumps in sandy wells, as their prolonged use can lead to the destruction of the water intake walls.

The device and principle of operation of a submersible centrifugal pump

The design of centrifugal equipment provides for the following elements:

Centrifugal device;
- submersible electric motor;
- automation;
- water-lifting pipeline.

Installation of a submersible pump provides for the installation of a pressure gauge, a three-way valve and a support device at the wellhead or well. Asynchronous units with a squirrel-cage rotor act as electric motors. The stator winding is made of copper and is wire-insulated. Bearings are most often made of PCB or Linofol. The thrust bearing assembly must be able to support the rotor weight and thrust. To prevent "dry" operation, such an addition is installed as float switch, which will automatically turn off the device in the event of a drop of water in the source to a critical level.

Depending on the type, the equipment can be equipped with the following types of impellers:

With cast-type spatula taps;
- closed type;
- with cylindrical discs and tubes.

Modern pumping equipment for wells is a device designed for high and continuous loads. The unit is placed in a well or well on a backwater that is located at a distance of at least 1 meter (with a minimum water level in the source), powerful pumps should be installed at a distance of at least 6 meters. Cooling of the engine is carried out for the network of the pumped water.

The submersible borehole pump design eliminates intermediate bearings and long borehole shaft, which gives them advantages. Such units can be installed even in intakes with a curved channel. Submersible centrifugal pumps have high efficiency, which makes it possible to use less powerful motors. The presence of multi-stage options allows you to purchase equipment that will create high pressure... The disadvantages of centrifugal models include the complexity of the repair and the relatively high cost. It should be noted that these units are designed to operate in an environment with a pollution level not exceeding 15kg / m3.

How to choose the right equipment for an organization autonomous water supply? Along with the arrangement of the water intake source (well, well), special attention must be paid to the method of raising the liquid from them to the surface. To solve this problem, submersible centrifugal pumps are most often installed.

The purpose

An autonomous water supply consists of several elements: a source of drinking water, a pipeline system and mechanisms for creating pressure for transporting liquid. Their correct design and interaction with each other are the key to optimal performance.

Pumping equipment is the main part, which must solve the following tasks:

• The rise of drinking water from an underground source to its distribution system.
• Providing the required indicator of pressure and volume.
• Uninterrupted operation (in accordance with operating conditions).
• Maximum ease of management and process automation.

One of optimal solutions, satisfying the above conditions, will be the installation of centrifugal pumps. Along with a simple and reliable design, they have good performance properties. Their main field of application is raising water from wells and wells. Depending on the depth, submersibles of various capacities are installed. For artesian wells, this figure can reach 50 m. Wells, in most cases, have a depth of up to 7 m.

Operating principle

The basis for the right choice and operation is a scheme of work that distinguishes submersible centrifugal pumps from other devices of a similar purpose. Their design meets the operating conditions - being in liquid medium, the housing must not corrode. Since an electric motor is used as a power unit, its complete waterproofing is mandatory in order to avoid breakdowns and malfunctions. Consider the device of a submersible centrifugal pump. A typical pump consists of the following elements:

1. The electric motor is the sealed part of the pump in which the power unit is installed. With the help of the shaft, the rotational energy is transferred to the next node.
2. Blade Compartment - Located at the bottom of the unit. Designed to create pressure due to which the water rises.
3. A pipeline is a transport unit for moving liquid to a consumer point - a water supply system at home or irrigation.

The pump is made of non-corrosive materials - high quality polymers or stainless steel. In the lower part of the housing, there are intake holes that serve as a filter. Large debris particles do not enter the pump. During the rotation of the blades, under the action of centrifugal force, the water masses move along the receiving chamber of the device. At the same time, they act as an engine cooler, preventing engine overheating. For a timely start (stop), water is connected to the pump control unit. In addition to them, external control elements can be connected to the system - a pressure signaling device in the water supply system of the house or direct switching on (off).

Kinds

Depending on the technical characteristics, submersible centrifugal pumps may vary slightly in design. When choosing the optimal model, one should take into account the composition and degree of water pollution, as well as the depth of its occurrence. The last factor will directly affect the pump power.

The design of household models is relatively simple: the engine, together with the impeller, generates sufficient water pressure during operation. They are simple, reliable, have small overall dimensions... But if the drinking water bedding horizon is deep enough, it should be installed complex types constructions.

To increase this parameter, centrifugal submersible water pumps are equipped with a more powerful motor, or a vertical pulley with several impellers. Thanks to this, they create an increased pressure of water to raise it to the surface.

Similar designs are also used for pumping oil. They have good performance characteristics, and most importantly, they are reliable.

Specifications

The standard submersible is selected based on its technical characteristics. In this case, you should pay attention to the power indicator. It is the determining factor when choosing a particular model of the device. In addition, you need to know the following device parameters:

• The volume of the pumped-over liquid - l / min.
• Height of the water column. Determines the maximum depth of the well (well) and the horizontal length of the pipeline.
• Additional equipment - water level sensors and emergency shutdown.

Most devices are made of stainless steel. In low-power models, designed for a small height of water supply, it can be made of polymer materials.

Operating conditions

Modern submersible centrifugal pumps must operate under conditions that are clearly specified in the instructions. This will determine not only the quality of the device, but also its durability. To the main operational characteristics include the composition and temperature of the water, the degree of its pollution. You should also pay special attention to the stabilization of the applied voltage.

Often, submersible centrifugal ones are installed on household plots where current surges are common. The electric motor does not have effective protection from such differences. Therefore, it is recommended to connect the device through a stabilization unit.

Installation

The basic installation rules are described in detail in the operating instructions. If it is necessary to install a centrifugal one, then you should consider a system for its fixation. On the pump body there is a special fastener... It is required to install the submersible wire rope.

The material of its manufacture must meet the following requirements:

• Do not corrode.
• The breaking load must be at least 5 times the weight of the device.

Do not lower the device with the power cable alone. The main load should be on the mounting cable. It is attached to the surface: either to crossbeam at the neck of the well, or on the outer protective walls of the well.

Service

The instructions also indicate the approximate period of preventive maintenance. Basically, they consist in checking the tightness of the case, replacing rubber seals on the motor rod and cleaning the connection contacts. In the event of an unexpected breakdown, contact the representatives of the manufacturer, or a specialized repair shop.

It should also be borne in mind that submersible centrifugal pumps can be additionally equipped with filters for pre-cleaning water. They are installed on the inlet of the device and are replaced as they become dirty.

Before purchasing, you must clearly know the operating conditions under which the centrifugal submersible pump for a well will work optimally. To do this, it is recommended to adhere to the following recommendations:

1. Consumption of water. The water supply rate must comply with the design standards.
2. Height of the water column. When calculating it, not only the depth of the well (well) is taken into account, but also the horizontal sections. For them, a reduction factor of 0.1 is applied. If the well depth is 7 m, and the horizontal pipeline has a length of 12 m, then the minimum height of the pump's water column should be: 7 + 12 x 0.1 = 8.2 m.
3. Water level sensors included.
4. Equipment warranty, remoteness service center equipment manufacturer.

Given these indicators, you can choose the optimal model pumping station that will provide the proper amount of water. In addition, they can perform the functions of draining flooded cellars and basements. The main thing is to take into account the composition of the liquid and the permissible norms for its contamination for a particular pump model.

Thanks to this, they create an increased pressure of water to raise it to the surface.

The presence of an autonomous water supply system in a summer cottage or in a private house is a huge plus in their arrangement. The owner does not depend on the pumping stations - he has his own at his disposal. There are many installations for pumping water: surface, deep well pumps. If you have doubts about which one to choose, see how the installation is done by hand (installation using the example of a grundfos pump).

Varieties of pumps and their classification

Main function submersible pump is the extraction of water mass from the bowels of the earth and its transportation to the consumer in living quarters or outbuildings (kitchen, shower, toilet). Also, with its help, watering of the site or greenhouse is carried out, and the filling of reserve tanks.

Submersible pumps have a small cylindrical casing. They practically do not take up space on the site. There are 2 types of these pumps:

1. Industrial. Used by businesses. Due to the high power, they can lift water from a depth of up to 100 meters. They have impressive dimensions.
2. Household. Used in private homes or summer cottages, can be installed independently, are compact and relatively powerful.

Advice. Please consult a specialist before installation. The power of the selected pump will depend on the depth of the water.

Also, pumps differ in the way they are installed.

1. Submersible pump. The device is completely immersed in water, a pressure hose is withdrawn from it, with the help of which it is connected to the water supply.
2. Surface pump. The device is located outside the water surface, 2 hoses are diverted from it: pressure (supplies water to the water supply system) and suction (ensures the suction of liquid into the pumping unit).

In addition to the difference in the field of application and the installation scheme of the pumps, there is also a classification by the type of design and the principle of operation:

Centrifugal pumps. Used at any time of the year. The hydraulic mechanism is used. The water supply is carried out by rotating the wheels located near the engine. The working part (wheels) is made of dense plastic or stainless steel, which ensures a low weight of the structure. Resistant to abrasives (sand and clay). The installation of this equipment requires a filter rough cleaning water from sand particles and stones. It is cooled by the water passing through the body, therefore it is installed according to the recessed principle. These pumps are equipped with a temperature sensor that automatically turns off the device in case of overheating. The only drawback of the equipment is its high cost, compared to the vortex one.

Advice. If you plan to live year-round in country house then it is better to choose a centrifugal pump.

Vortex or vibration pumps. Such equipment is not designed to supply a large number water. They are used only in shallow wells. Calculated for seasonal water consumption. The operation of the mechanism is carried out due to high-frequency vibrations that set in motion a mechanical piston, which ensures the suction of water into the apparatus. The advantages of this kind of equipment are low cost, compact dimensions, and minimal energy consumption. Minuses - destroys the walls of the well due to prolonged vibration exposure, low power and poor performance.

Advice. To prevent the vortex pump from destroying the walls of the well, when it is installed, rubber rings are put on the body.

Depth-type pumping unit device

In order to properly carry out the installation of pumping equipment, you need to know which pump consists of what, how it assembles and works.

The main parts of the device are the engine and the pumping part. The engine is located in the lower part of the housing; during installation, special attention is paid to its waterproofing. The pumping part is a multistage mechanism that includes impellers, vane branches and a working shaft that drives them.

The product is cooled with the pumped-out water. External cooling occurs due to the passage of water masses between the pump casing and the walls of the well. Internal - when water flows directly through the unit.

Important! If the installation pumping unit to the bottom or walls of the drilled well is not possible, then the well is equipped with asbestos pipes.

Among all water pumping devices, submersible pumps are the most popular. They have a number of advantages over other units:

• noiselessness of work;
• no interruptions in the supply of water;
• easy and quick installation;
• water intake at great depths;
• narrow cylindrical body shape;
• protection against engine overheating;
• made of anti-corrosion materials.

Advice. In order to choose any pump, it is necessary to take into account the shape and depth of the well. Subsequently, you will not waste time, effort and money on the installation of additional equipment.

In order to choose the right submersible pump, the following data must be taken into account:

• water consumption at each point of water intake and throughout the entire site in total;
• diameter and depth of the drilled well;
• geological data of the land plot (type of soil, depth of groundwater, etc.);
• the presence of electricity supply sources on the site.

The choice of a pump directly depends on the depth of the well and the occurrence of groundwater. If the aquifer is at a depth of 10 m or more, then you should choose a submersible pump. When purchasing a pump, choose a device with a capacity slightly exceeding the required one: later you can improve the water supply system without having to replace the water pumping device.

How the pumping device depends on the depth of the well

To select a pump, you need to look at the passport data of the well, all its parameters are indicated there. If you do not know the depth of the well, then you need to make measurements. Tie a weight to a dry (!!!) rope and lower it into the hole, remove the rope and use the wet mark to determine the distance from the ground to the water level in the well. By lowering the rope deeper, the depth of the hole can also be determined.

When purchasing a pump, be sure to read the instructions and the product passport. These documents indicate the pump power depending on the depth of the well.

1. 30-60 meters. Installation of pumps in such conditions is carried out directly into the well. During installation, 2-3 check valves are additionally installed so that the raised water does not go back. Centrifugal pumps equipped with thermal protection are installed in such wells. The device is inserted into the well with the help of special equipment and fixed with a cable on the surface of the earth.
2. 10-20 meters. When water is found at medium and shallow depths, a surface pump can be used, not a submersible pump. Such an apparatus is installed far from the source, and water is taken from it with the help of a hose.

Installation of a submersible device using the example of a GRUNDFOS submersible pump (grundfos)

Submersible pumps from Grandfos (grundfos) are equipped with submersible motors. Quiet operation of the engine is ensured by installed plain bearings lubricated with a special liquid anti-corrosion grease. The electrical part of the pump is filled with liquid, the maximum freezing point of which is -20 ° C and below. In order for the engine to work properly, it is necessary to constantly monitor the level of the fluid being filled in it. It is recommended to top up with SML-2 liquid only from Grunfos. To fill in an electric motor, use the following algorithm:

1. Make sure that the motor is installed in a vertical position with a deviation of 10-12 °.
2. Unscrew the plug with a screwdriver.
3. Use a syringe to fill the engine with fluid.
4. Distribute the liquid evenly over the surface of the engine capsule by rocking the device, the collected air will come out to the surface.
5. Tighten the screw plug as tight as possible to prevent spillage.
6. Place the motor in the pump housing.

In order for the pump motor to cool freely, it is necessary to control the temperature of the filled liquid and minimum value water flow rate. To ensure free convection, the width of the well pipe is made 4-6 cm larger diameter pump housing.

Important! Free convection of the motor is not permitted when deposits form on the pump housing.

Before installing the pump, make sure that it is disconnected from the mains after a possible check and that it cannot be accidentally turned on. All technical data of the product are described in the passport in the form of a table, there are demolished power, electricity consumption, supply voltage value of "cosine phi", etc.

Grudfos pumps (grundfos) are equipped with an internal thermal relay, which is triggered when the installation overheats, turning off the power to the pump. They do not need additional protection.

Installation of a deep-well pump Grundfos (grundfos) is performed as follows:

1. A check valve is installed on the pump branch pipe. Water will not drain after power off.
   A cup-shaped coarse filter is mounted on the suction pipe. It will protect the working pump chamber from siltation.
2. After installing the check valve, a discharge pipe is installed, through which water will be supplied upward.
3. The power cable in the waterproofing is passed through the injection hose, it is fastened with clips.
4. In the brackets provided on the upper part of the stainless housing, polymer twine is passed, which will further hold the pump in the well.
5. The device, ready for launch, is lowered into the well shaft. Only the twine serves as a support, the bundle of the cable with the hose does not bear any load.
6. The rope is fixed on a bracket that is located on the outside of the casing.

Please note that a professional person will help you choose the correct installation algorithm. If you want to do the installation yourself, consult a wizard to avoid mistakes.

Replacement and repair of a deep-well pump

Even the most reliable system wears out and may malfunction. To provide further work device, it must be dismantled and replaced or repaired. This procedure is done like this:

1. Disconnect the power supply and water supply system from the pump unit.
2. Remove the pump from the well. To do this, you need to use the help of comrades, since this procedure involves a lot of physical labor.
3. Disconnect check valve and a coarse filter located at the pump inlet.
4. Diagnose the product.
5. Replace or repair the defective parts.
6. Carefully inspect all fittings, hoses and cables for damage.
7. Clean the filter or replace it.
8. Collect pumping device and install it on the workplace.

When replacing the device, use new resin straps and filters.

As you can see, the installation and dismantling of the deep pumping unit can be done independently. The main thing is to choose the right device and select the pump power for the appropriate depth of the well.

How to install a submersible pump: video

Deep well pumps: photo

If you want to have on own site free water in any quantity, you should start by drilling the mine to the aquifer. The second step will be to install a submersible pump in the well. It is the correct operation of such equipment that will guarantee high-quality watering of garden plants, the continuous operation of the washing and dishwasher, bathroom and bath.

Deep well pumps have different capacities, sizes and other parameters. In this article, we will look at the main selection criteria. Installing the optimal equipment will save you many problems in the future and will give you confidence in the constant presence of H2O in your area.

General Provisions

In order to successfully pump out water from wells, wells or other reservoirs, there are the following types of pumps:

• Self-priming... Such equipment is installed on the surface and sometimes looks like a full-fledged pumping station. They cope well with sandy wells that have a relatively shallow depth.

• Submersible... They have a large capacity, the volume of pumped out liquid and the height of the head column. Structurally, they are able to penetrate even very narrow mines. Ideal for artesian wells.

Selection and installation

Since a deep well pump is best suited for wells, let's move on to the rules for choosing it. To do this, first of all, it is necessary to determine where the water supply is required and in what quantity.

Correct criteria

1. Pump performance. The amount of liquid that it can distill in one hour.

1. Head height. The force of the liquid push is selected in accordance with the depth of the mine and its distance from the house.

1. Well debit. The real volume of water that can be provided by an aquifer in an hour of continuous supply.

In this regard, you should start choosing pumping equipment after you finish drilling the well and provide you with a technical passport with all the necessary data.

It should contain:

• Shaft diameter. What the diameter of the submersible will depend on.
• Static and dynamic water levels. The first is formed in the case of a structure idleness, and the second - with its active use.

• Well productivity, which is measured by the number of transferred cubic meters liquids for an hour.
• Mine depth. It significantly affects the required head.

You should not purchase a submersible pump that is too powerful for two reasons:

1. Its price will be much higher, but why overpay?
2. If its productivity turns out to be greater than the productivity of the well, then it will not have time to fill with water. Because of this, dry running will follow, which, in the absence of special protection, will lead to engine burnout.

Thus, we now know that the maximum power should not exceed the amount of water inflow. What affects the minimum?

Let's consider:

1. The size of your family. On average, one adult requires about 1000 liters per day. Multiply this number by the number of permanent residents and you will know your home's daily water requirement.

1. The presence and area of ​​the garden. Watering crops usually takes up to 2000 liters of the required liquid.

1. The number of simultaneously used consumption points.
   Here is a sample list with standard expenditure, measured in m 3 / hour:
   
   • sink - 0.7;
   • bathroom - 1.2;
   • bidet - 0.3;
   • shower room - 0.8;
   • dishwashing machine - 0.6;
   • washstand - 0.3;
   • washing machine - 0.8;
   • bathroom - 0.4

   So to run washing machine and filling the bath at the same time will require equipment with a capacity of at least 2000 m 3 / hour. But, do not forget that there may be a need at this time to wash the dishes and go to the toilet.

In addition to the power, which we choose based on the capabilities of the well and the needs of the residents, it is also important to select the correct pressure head to which the fluid supply will be required.

We perform calculations as follows:

• Take the height of the house and add 6 meters to it.
• The resulting amount is multiplied by the coefficient of pressure loss during movement through the pipeline. It is equal to 1.15.
• Now add the depth of the shaft to the surface of the water mirror. We take this value from technical passport provided by the drilling company.
• Next, you should take into account the distance of the well from the building that needs water supply. It is generally accepted that 10 m horizontally equals 1 m vertically.

Suppose that the height of your house is 7 m, the depth of the mine is 30 m, and the distance from the water intake points is 20 m. Substitute: (7 + 6) * 1.15 + 30 + 2 = 46.95. That is, a pump is required, the head of which is at least 47 m.

The most important is the calculation of the water delivery height, rather than the pump power. Since it is rare when all points of water consumption are open, but a miscalculation with pressure can lead to a complete absence of H 2 O in the water supply system.

Advice: if there is a possibility of an error in calculating the performance of the equipment, it is recommended to install membrane tank.
With it, it will be possible to set the pressure level, which will avoid water hammer along with frequent switching on and off of the engine.

Installation

How to install a submersible pump in a well? To do this, you need the device itself, metal-plastic pipe required length, adapter, steel rope and electrical cable with waterproofing.

The installation instructions look like this:

1. We fasten a special nipple to the pump outlet, sealing the connection with a "winding". It will serve as an adapter for the casing thread.

1. We align the polyethylene pipe with our own hands as much as possible before fixing. This will allow the device to be lowered as evenly as possible.

1. We connect the power cable. In this case, it is required to provide waterproofing as best as possible using a special corrugation or heat shrink tubes.

Tip: When buying equipment, immediately check for the presence of a wire.
Because usually it is not included in the package and therefore must be purchased separately.

1. We tie a steel cable to the lugs specially designed for this, located on the pump housing. From above it can be attached to a winch mounted on a tripod. This will facilitate the immersion of the apparatus to great depths and will immediately become the answer to the question of how to get a deep-well pump out of the well for Maintenance.
2. Now the pipe, cable and cable are firmly connected with each other with special clamps so that we get one solid track.

1. We lower the unit. The places where it clings to the walls are carefully overcome with rotational movements.

1. We fix the position of the pump below the dynamic water level, but at a height of at least one meter from the bottom. This will prevent sand and other small particles from being sucked into the system.
2. We install a knee on top that guides the pipe towards the house and tightly close the shaft to prevent oxygen and atmospheric precipitation from entering it, which contribute to the corrosion process.

1. We dig a trench to the building with a depth below the freezing of the soil. Depending on the region, it can vary from fifty centimeters to one and a half meters.
2. We connect it to the water supply system at home and use clean and free water from the well.