How to choose pumps for a well for yourself. How to choose a pump for a well - an overview of possible options and selection criteria Pump for a well with a depth of 10 meters

A rope is inserted into the safety loop. The whole structure is lowered into the water. The pipe coming from the pump is connected to the water supply by a coupling, the cable is plugged into the socket, and the cable is attached to the brackets of the upper concrete ring in the well. It is forbidden to lower the device by holding on to the cable!

Model overview

"Kid" - fully corresponds to its name. It is a lightweight and compact pump designed for garden irrigation. It is not recommended to use it to work with a permanent water supply. The maximum head of the device is 40 meters.

The average price is from 1 240 to 1 900 rubles.

1. This model has several varieties. There are pumps with upper and lower water intake. The latter type has thermal protection. It is very convenient. If the device overheats, it will shut itself off.
2. When buying, pay attention to the length of the electrical cord! There is an option with 10 and 40 meters of cable length.
3. It can be repaired very quickly and easily. Replaced the filter and put it back into operation. We are using it for the sixth year in a row.

Vodoley is the sales leader among domestic submersible pumps. Equipped with a reliable centrifugal system. Able to raise water to a height of 47 meters. It is used in industry, for extinguishing fires, watering vegetable gardens and supplying water to private houses.

The cost is from 1 600 to 6 600 rubles.

1. This pump is capable of working not only in a well, but also in a well. Moreover, it fits in a diameter of 12 centimeters.
2. Convenient and reliable unit. We have been using it for several years. I never let you down. Our water supply is 48 meters.
3. Manufacturers offer several basic models to choose from (and each has its own lineup). You can choose the one that suits the owners more. All pumps are powerful, lightweight and compact.

"Stream" is a small-sized vibration-type pump with a water intake in the upper part of the body. Nominal head up to 40 meters. Used for watering. Submersion in water up to 5-7 meters is allowed.

Price from 700 rubles.

1. Not a bad budget pump. It fully satisfies our needs. It is used only in the summer for watering the beds.
2. We noticed that when the voltage in the network drops, the work changes - the pump pumps less. So far, this is the only noticed drawback.
3. Indeed, the pump can be drowned ... if you do not mind the well. They did not sink to 7 meters, but worked at 3 meters without interruption.

"Dzhileks Jumbo 60 / 35N" - refers to surface-type pumps. Able to work with a depth of 9 meters. It has a fairly powerful head - the nominal figure is 35 meters. Used for irrigation and water supply.

The average price is 5,000 rubles.

1. The main thing in this model is the presence of protection against dry running. Used together with a well and a regular tank. If the water in the tank ran out unnoticed for us, the pump was turned off.
2. It works noisily, it is better not to install it in the house. In general, there are no complaints. At the outlet, we obtain a pressure of up to 3 bar. Enough for showers and household appliances.
3. We use it together with a hydraulic accumulator. The pump is installed separately in the barn. It is capable of pumping up to 5 atmospheres, but we reduced this figure manually so that the devices would not wear out. It is very convenient that all the automation has already been installed by the manufacturer.

GRUNDFOS SQ 1-35 is a powerful submersible pump with a centrifugal water supply system. Compact and lightweight. Diameter 8 centimeters. Ideal for supplying drinking water to any autonomous water supply system. Rated power 47 meters.

How to choose a pump for a well, this question always arises when we make water supply autonomously. Which pump for a well is better, we will consider in this article. After all, there are dab well pumps and jileks well pumps, and here it is completely incomprehensible what to give preference to.

This should be determined according to certain parameters. After all, these are just brands of products, but they are not so different in types. The video in this article will help you make the right choice.

Choosing a pump for a well

Specifications influencing pump selection

Which pumps are best for a well in terms of technical characteristics are determined based on the required performance and head.

Calculation example

The calculation takes into account:

• Overall performance.

A person needs 200 liters of water per day. A family of three will need 600 liters of water. You need to calculate the maximum flow rate when all family members use water at the same time:

1. the shower turns on - 9 l / min;
2. faucet in the kitchen - 6 l / min;
3. tap in the yard - 6 l / min.

The total consumption is 21 l / min - the maximum figure. If you have a personal plot, you need from three to five liters per day to water the garden. The indicator may vary depending on the composition of the soil and weather.

• Aggression.

You can calculate this indicator taking into account the height of the water rise and the length of the pipeline:

1. the height is calculated by the difference between the height of the section where the pump is located and the highest point of water intake;
2. the length of the pipeline is calculated taking into account losses for every 10 meters one meter of losses.

The instruction offers the following calculation formula for the water pressure when choosing a pump:

• H = Hgeo + (0.2 x L) + 10 ... 15 [m], where
• H is the required head, in meters;
• Hgeo - geometric height from the installation to the highest water intake point, in meters;
• 0.2 - coefficient of hydraulic resistance of the pipeline;
• L - Length of delivery and suction pipes, in meters;
• 10 ... 15 - adding to the total value to provide the required outlet pressure.

What is the best pump for a well now we will figure it out in detail. Here it is necessary to determine on the power and method of application.

They are united by one thing, the ability to install with your own hands, and on this topic there are detailed instructions for each type. So, how to choose pumps for a well.

A budget option

Pump types for wells

All pumps for wells that potential buyers can purchase in their respective stores are divided into different types depending on the characteristics underlying certain classifications.

So, pumps can be classified:

• By the nature of the design: vibration pumps, pumps using centrifugal force, pumps located on a certain surface; pumping complexes or stations.
• By the method of delivery of water.
• By the force of pressure (the height to which you need and can raise the water).
• By the quality and composition of the transported substance: water without impurities, water with a small proportion of impurities, water with a large proportion of impurities.
• By the level of pump power.
• By fault tolerance and the period of normal operation of the device itself.
• By price.

It is not surprising that many, even experienced buyers, run up their eyes from such a variety. So how do you choose the right pump for your well and your situation?

Submersible pumps

How to select well pumps by immersion type and function. Here's some division.

Submersible centrifugal force devices

Outwardly, this pump looks like a cylinder made of stainless steel; it contains:

• Sealed engine using centrifugal force.
• An impeller with which water is removed to the outside.

Attention: Such a device must be constantly submerged under water during operation, since it must be constantly cooled.

To avoid overheating, auxiliary means are used here:

• "Frogs" - floats;
• Bimetallic switches;
• Automated digital systems.

Preference in terms of reliability and convenience, perhaps, should be given to a pump for a well with a float.

Attention: As already mentioned, it is necessary to strictly follow the instructions when operating the submersible pump.

Also, do not forget that they require uninterrupted power supply during their work, which will lead to the need to lay a power cable to the well. On the one hand, this will make it possible to create a very convenient, in some cases, remotely controlled operation of the system; on the other hand, such work will require additional investment

Submersible drainage pumps

Such pumps are needed if necessary:

• Pump out a large volume of water in a short time;
• Clean the well in a professional manner.

Submersible vibration pumps

Such devices are often used by vacationers at summer cottages as "seasonal", especially when it comes to supplying water to the house, as well as watering the site.

Note: For quicksand wells, centrifugal or surface pumps are suitable.

Surface pumps

Their properties:

Surface pump overview

Components for pumps

Some manufacturers produce not only pumps and, but also various components for them, with which you can supply water at home and automate the operation of the device.

This set includes:

• Surface pump;
• Control relay;
• Hydroaccumulator.

To get started, you only need to connect these elements to the water supply. Now in stores you can find units that suck water on their own. Such pumps do not need a filled suction line with water.

The usual laws of physics apply here: the pump begins to operate as soon as water enters through a hole made in the housing. The best kind of work for these pumps is intermittent short sessions.

You can now decide which pump to choose for a well. Their price is quite different, for example espa has a good reputation, therefore its price will be higher.

Look at the photo, compare the parameters and make your choice. And you will not have a question, advise a pump for a well.

We do the installation of the pump in the well

More than one option can be applied here.

You will determine this specifically for your option:

Attention: To ensure stable and continuous operation of the pump, one important rule must be adhered to - the distance from the bottom to the bottom edge and the distance from the mirror to the top edge must be at least one meter. Otherwise, the pump may stop due to sand clogging or if the water level in the well falls.

• An example is an attempt to install a 60 cm long borehole pump in a well with a water level of only one and a half meters. Therefore, the choice of pump type and installation option should be considered individually. For example, in order to prevent the suction of sand, it is sometimes advisable to install a circle made of harmless, non-corrosive material at a height of 5-10 cm from the bottom of the well.
• The durability of any electrical equipment depends on the number of its on and off, therefore, accumulators are installed to increase the service life. These devices allow the accumulation of a certain volume of water, smoothing the impulse effects on the system during short-term water supply. By introducing a delay element, the accumulator prevents the pump from turning off when the tap is closed and provides the water supply system in the absence of electricity.

Installation of surface

This design works best if you will only be using it in warm weather:

• We do the installation near the well. The site must be rigid and level;
• We fill the body itself with water;
• We prepare a hose of the required diameter and lower it into the water;
• We make a connection to the power supply;

Attention: To pump out water, use a hose with a mesh. This will be the filter. In this case, you should pay attention to the location of the hose, the smoother the better.

• When installing the pump in winter, it will be necessary to carefully insulate it. For this, it is worth considering xenon made of iron or concrete. It is most optimal to use polystyrene as a heater. For laying pipes, you should choose a depth that is greater than freezing of the soil. Insulate it. It is best to use electric heating; there is a detailed article on this topic on our website.

How to mount a submersible pump

The instruction indicates that the installation of a submersible pump must begin with connecting the pipeline.

In addition, submersible pumps for wells, how to choose it is necessary, take into account:

• The maximum head of the mechanism should not be higher than the maximum pressure that the pipes being installed can withstand.
• Ordinary hoses can be used for watering the garden and vegetable garden, as well as filling containers. Elements are connected through a plastic sleeve.
• The pump is permanently installed when it is used regularly. It is necessary to pull out the device for prophylaxis, if necessary, repair in the event of a breakdown.
• It is necessary to lower it into the well very carefully.
• For connection, metal or plastic pipes are taken.
• The unit cable is fixed.

Tip: It is better to arrange the cord in the discharge pipe, which prevents the cable from being damaged, and the installation of the pump will be facilitated. It is strictly forbidden to lower the unit by the power cable.

• The nylon cable must be passed into special lugs located on the device, and a spring suspension must be attached to its ends.
• After the preliminary work, the pump is installed in the well.

Sanding in vibratory and centrifugal pumps

Experts complain that well sanding is a significant problem in Russia. This happens when the well is not installed correctly.

Many people, wanting to save money, install wells on their own without using the services of professionals. As a result, wells are being drilled not in the best place.

So:

• To avoid sanding, you need to opt for centrifugal borehole pumps.
• Vibration structures should not be used for wells, since during the reciprocating movements of the engine there is a constant circulation of water. Because of this, the well is soon filled with sand. But the vibration pump can be installed in a well.
• It should be borne in mind that all models are accompanied by instructions, where the manufacturer informs the buyer about the maximum characteristics of pressure and performance. During operation, these will be approximately average indicators.

Providing a country house with water is probably always a primary task when creating, even if not comfortable, but simply acceptable, minimum necessary conditions for even temporary residence in it. Well, if the house is considered as the main place of residence of the family throughout the year, then the presence of a constantly and stably operating source of water generally turns into a primary necessity. Conventional water supply networks in suburban settlements are not found everywhere, so more often you have to rely on autonomous sources.

Often, the only possible source on the site is a traditional well, and the owners have to organize the transportation of water from it to the points of consumption. A rocker with buckets on the shoulders of a slender mistress is very beautiful in pictures and in feature films about peasant life, but it is absolutely divorced from the current reality. A variety of pumping equipment that can solve the assigned water supply problems comes to the aid of modern homeowners. In this publication, the emphasis will be on the issues of how to choose the right submersible pump for a well, so that the household's need for clean water for a variety of needs is fully met.

Advantages of submersible well pumps

The supply of water to the house from a nearby well can be done using a surface pumping station or a submersible pump. Both options have their own advantages and disadvantages, which should be taken into account when developing a water supply scheme for housing. In this publication, we will "take out of the brackets" surface-type equipment, and talk only about submersible.

One of the solutions to the water supply issue is a stationary pumping station

submersible pump

If a country house is a permanent place of residence, if there is an isolated noise-proof room, if the parameters of the well meet certain requirements, then the pumping station can become the optimal solution to the issue of water supply. However, it is obvious that there are too many “ifs”, and in order not to be mistaken, read the information posted in a special publication of our portal.

Why in some cases is a submersible pump the best choice?

• are almost always limited in terms of the water absorption depth - usually this value lies in the range of 7 ÷ 8 meters. If we add to this the horizontal section of the pipeline from the well to the station itself, then the real depth can be even less. This often leads to additional expenses for the construction and equipment of a caisson for a pumping station in the immediate vicinity of the well. This is not a problem with submersible pumps.

• Submersible well pumps, unlike surface pumps, will not annoy the owners with noise during their work.
• Submersible well pumps are always less "capricious" to the quality of the pumped water - most of them are able to cope with fine suspensions, which are very likely in a well.
• With a sufficient flow rate of the water source, the risk of overheating the pump drive is minimal - it is constantly in a cool water environment and is additionally cooled by the pumped stream.
• With submersible pumps, it is easier to organize monitoring of the water level in the well - a special automatic float installed on many modern models will take over this.

• The use of surface pumping stations imposes special requirements on the tightness of the intake pipe. The slightest looseness at the joints, completely invisible to the eye, will inevitably lead to air suction. By definition, a submersible pump has nowhere to suck in air.
• If there is a need to leave the housing unattended for a long period, it will be easier to remove and remove the submersible pump than, for example, to dismantle the pumping station from the caisson or the room allocated to it.

In a word, there are many advantages, therefore, on the forums dedicated to the water supply of private houses, you can find numerous recommendations to the owners of houses with a well to give preference to them.

There are also disadvantages of submersible pumps:

• For their operation, it is necessary to provide a power line from the house to the well, to monitor the perfect condition of the cable insulation.
• The coordination of the automation that controls the operation of the entire plumbing system of the house will be somewhat more difficult (at pumping stations, some control and monitoring elements are already provided for in the design itself).
• A submersible pump is more vulnerable in terms of ensuring its safety. In other words, it is easier to "steal" it in the absence of the owners of the house.

Of course, no matter what pump is chosen, its installation does not solve the problem at all (unless, of course, we are talking only about watering the garden) - a rather complex automated system needs to be created, but this is a topic for separate consideration.

Autonomous water supply from a well

In order for the water supply to be carried out without interruption, at any time of the year, when creating an autonomous water supply system, it is necessary to adhere to certain rules. - read in a separate publication of the portal.

The main types of submersible well pumps

Modern submersible pumps for wells, according to the principle of their operation, are classified into four types: vibratory, centrifugal, vortex and screw.

Vibrating pumps

These pumps are among the most inexpensive and simplest in their design.

Despite a fairly wide range of devices of this type, they all have approximately the same design and even outwardly are very similar to each other. Sometimes the parameters are completely the same, and the only difference is in the manufacturer of the pump.

The basic device and principle of operation are best seen in the diagram:

It is always a vertical metal case, consisting of halves of approximately equal height, with different configurations (item 1). Between the two parts of the body there is an elastic seal (item 2), which guaranteedly seals the internal cavity of the device and, in addition, acts as a kind of damper that significantly reduces the level of vibration generated by the pump. The body halves are firmly connected with the machine screws (key 3).

The entire "electrical part" is located in the lower half of the appliance. A power cable (pos. 4) with reliable insulation is connected to it. The electromechanical part is very simple. This is a coil with a ferromagnetic core, when a current is passed through it, an electromagnetic field is created. Since the supply voltage is variable, the lines of force of the magnetic field also change their direction 50 times per second (50 Hz). To ensure complete electrical safety and increase the durability of the coil, it is completely filled with a dielectric compound (pos. 6). Even an accidental ingress of water into the lower part of the case should not cause short circuits.

Above the coil is a massive steel armature (pos. 7). The alternating electromagnetic field either attracts it to itself, then repels it in the opposite direction. Due to the rather high frequency of direction change, this movement is more like vibration of the armature together with the rod connected to it (pos. 8) in a certain amplitude range limited by the pump design.

An elastic diaphragm (key 9) and a piston are attached to the stem at the top of the pump. When the armature moves down, a vacuum is created in the pump chamber, due to which water flows through the intake holes in the upper part of the housing (pos. 11). When the armature moves upward, in the compression phase, the water outlet to the outside closes the valve (item 12), and it has only one way - through the outlet pipe (item 13) and then, along the hose connected to it, upward to the water intake points.

In the upper part of the body there is a hole, eyelet or ring (pos. 14) for securing the cable, for which the pump is lowered into the well and suspended at the required height in the water column.

As you can see, the device is simple, completely eliminating the presence of rotating or rubbing nodes. This also predetermines the low price for such pumps.

However, such devices have very significant disadvantages:

• Despite the presence of an elastic damper between the halves of the housing, during the operation of the pump, sufficiently strong vibration waves are generated, which are transmitted to the surrounding aqueous medium. Such a phenomenon can cause turbidity of water in not too deep wells, but this is not even the worst thing. The constant vibration impact on the unprotected walls of a well or borehole can lead to their gradual destruction. Therefore, such pumps are recommended to be used only in sources with strong walls, for example, from concrete rings.
• Such a pump does not like water with fine dirt - solid particles will interfere with the tight fit of the valves.
• The design of the vibration pump does not imply the presence of automation or water level sensors. This means that you either have to buy such devices additionally, or you can independently ensure that the pump is always submerged.
• The pump is quite noisy, and it can be felt even though it is submerged in water.
• Judging by the reviews in the forums, vibration still justifies its definition of "friend and foe", and pumps of this type usually "do not live" too long, despite the assurances of the manufacturers. The use of vibration pumps is justified by the fact that their low cost makes it quite possible to replace them with new ones on a regular basis.

• Vibration pumps are able to create a good water pressure, but they do not differ in high performance.

From the foregoing, the conclusion suggests itself that a vibration-type pump will become an inexpensive and effective solution if it is used to provide water to a country house in the summer and for. To consider it as a serious water supply device for suburban housing with a permanent mode of residence for the owners would probably be a great exaggeration.

Submersible screw pumps

Pumps of this type are not so common, but they still deserve consideration.

The principle of pumping water with pumps of this type is based on the rotation of the "Archimedean screw" - in order to imagine this, you can recall how a conventional manual meat grinder works.

The auger (item 1) of complex geometrical shape is connected to an electric drive by a shaft (item 2).

Rotation takes place in the cavity of the stator (pos. 3), which also has a rather complex geometry and is usually made of elastic material (based on rubber). The rotor-auger turns are adjacent to the stator machines. During rotation, the volume of water that is in the formed cavities is pushed forward into the outlet pipe. It is interesting that the configuration of the screw and the stator is selected in such a way that the total volume of fluid in the translationally moving cavities always remains the same. This provides a very even, stable outlet head.

pump BISON

Advantages of screw pumps:

• High indicators of the created stable pressure.
• Low noise and vibration level during operation.
• Of all submersible well pumps, screw pumps are the most resistant to water pollution, since such a scheme was generally developed for pumping viscous technical fluids.

However, the disadvantages of such pumps make their use very limited:

• High indicators of the created head "coexist" with a very low pump performance.
• Screw pumps have the lowest efficiency, apparently due to the abundance of rubbing units.
• The same reason - the presence of friction units, reduces the wear resistance of the pumps, that is, they require regular maintenance and repair work, and most often - with the replacement of worn out elements.

So, screw pumps are probably more suitable for industrial conditions, where the precise regulation of the created pressure and its stability come to the fore. Despite the fact that household models are produced specifically for wells or wells, it cannot be said that they are widespread.

Centrifugal pumps for wells

This type of submersible pump is the most common and popular, as it meets most of the requirements for such a technique.

The working body in pumps of this type is a wheel with blades, placed in a special chamber, with a liquid inlet in the center and an outlet pipe at the periphery.

The rotation of the impeller wheel, provided by an electric drive, creates powerful centrifugal force vectors - the incoming water is thrown radially from the center to the outer walls of the chamber. As a result, a rarefaction zone is created in the center, and an area of ​​increased pressure in the periphery (this is well shown in the illustration by changing the color from blue to red). This creates a powerful stream of water.

There can be several such chambers, installed in a cascade, which naturally increases the pressure generated by the pump (water column).

Pumps of this type have high performance indicators - they are able to lift water from very significant depths without losing their performance. Their work is low-noise and is not accompanied by any significant vibration.

For such pumps, a very wide variety of models with different characteristics is especially characteristic - the performance and the created head can vary both by changing the diameter of the working chambers and their number. It is always possible to select a model for the available water source - from surface wells to very deep wells.

The disadvantage of such pumps can be conditionally considered the complexity of the design, which also predetermines a rather high price for such equipment.

The centrifugal scheme allows many pumps to work with moderately polluted water - this should be indicated in the product passport.

Vortex submersible pumps

There is another category of submersible pumps - vortex type. In general, such devices are very similar in design and principle of operation to centrifugal ones. However, the special shape of the impeller and the chamber contributes not only to the creation of centrifugal forces, but also to the turbulent accelerations of the pumped liquid that are combined with them. This significantly increases the operational capabilities of the equipment.

Interestingly, the design of such pumps is even somewhat simpler than standard centrifugal pumps, which makes them lower in cost. This can be attributed to the obvious merits. Such devices work almost silently and without vibrations. Another important point - a vortex-type pump is not afraid of a certain amount of air entering together with the pumped water - for technological purposes, such equipment is even used to pump liquid dispersed compositions saturated with gases.

In addition, the widespread use of pumps of this type is also limited by the not too "outstanding" durability - according to these indicators, they are significantly inferior to centrifugal ones.

The main parameters for choosing a submersible pump for a well

Before going to buy a pump for a well, the future owner should clearly understand several important points:

• What are the main purposes of using the pump - will it be used only for gardening and household purposes, or will it become the main supplier of water to provide the entire house.
• Based on the first point - what is the quantitative need for water that should be provided by the pump, and what should be the created pressure.
• It is important to have an accurate idea of ​​the depth of the well and the thickness of the water layer in it, not only static, but also dynamic, that is, with active water intake. Ideally, you need to know the debit of the well - that is, the amount of water entering it per unit of time. The remoteness of the well from the house or the proposed points of water intake must be taken into account.
• It is important to have information about the quality of water in the well, the degree of its turbidity, the state of the soil at the bottom. Visual observation may not be enough for this, and deeper laboratory analysis will be required.

Let's not forget about the filtration and water purification system!

The analysis carried out will help in drawing up a scheme for the necessary water treatment, in cases where the well becomes the main source of water for a permanently inhabited house. What are necessary in certain cases - read in a separate publication of our portal.

So, when choosing a submersible pump for a well, the following criteria are evaluated:

• Electrical parameters of the pump. Although these values ​​are, from the point of view of assessing the operational capabilities of the equipment, rather, a reference, they must be taken into account in order to create an appropriate supply line that will be able to withstand the load. It may be necessary to provide a dedicated automatic machine for the pump. In addition, some pumping equipment (in particular, of the centrifugal type) is very demanding on voltage stability, so if there are problems in the power grids, you will also have to install a stabilizer.
• The most important value when choosing is the water pressure generated by the pump, which is usually indicated in meters of water column. For reference - the value of 10 meters of the column is approximately equal to 1 technical atmosphere or 1 bar.

The pressure created by the pump must ensure both the rise of water from the depth and its delivery to the points of consumption, the most remote or the most elevated above ground level. In this case, horizontal sections of pipes should also be taken into account - on them, due to hydraulic resistance, pressure losses also occur. In addition, the diameter and even the material of the pipes matters - in metal, the resistance is always higher.

Naturally, at the end point of consumption, the pressure should be such that comfortable use of water is ensured, that is, at least 1.5 ÷ 2 atmospheres. Some devices and devices may require large values ​​- all this is taken into account in the preliminary calculation of the required indicator. This is usually solved by installing a hydraulic accumulator.

• The next most important value is the performance of the device, that is, its ability to pump the required amount of water per unit of time (liters per second, cubic meters per hour, etc.)

Here, the calculation is carried out based on the number of points of water consumption and their average consumption. Moreover, they are usually calculated so that the pump can cope even with short-term peak consumption, in that unlikely, but still possible situation when all points are involved.

If the pump will be used only for watering the garden, then here the calculation is completely different - they proceed from the area of ​​the site, the required amount of water and the duration of irrigation.

Makita pump

Calculators for calculating the required performance are also given in the appendix to the article.

• An important selection parameter is the pump size. If for a well the diameter of the device does not play such an important role as for, then the height, on the contrary, becomes of paramount importance - here everything depends on the height of the water layer. The pump should be suspended so that it remains submerged in the water, but at the same time, it should not be located closer to the bottom than the manufacturer recommends, so as not to cause the concept of turbidity.
• The permissible contamination of the water with solid inclusions must be taken into account - usually this parameter is indicated in the technical documentation. For wells with a shallow depth and a silted bottom, it would be more expedient to purchase a pump with an upper water intake. If the prior is demanding on the purity of the pumped water, then it is better to purchase a model equipped with an intake pipe, which is always maintained at a certain depth using a float device. Typically, these pipes are equipped with additional filtering devices.

• Of course, the operation of the pump will become much quieter if it is equipped with a float water level sensor - this eliminates air suction in cases where, for some reason, the water flow rate exceeded the debit of the well.
• The pump body must be made of high quality material that does not corrode and does not impair the nutritional quality of the water. Cast iron or stainless steel can be used in different pumps (which, of course, affects the cost of the product). Recently, high-strength plastic has also become increasingly used.
• The mass indicator of the device is important for organizing a reliable suspension of the pump in the water column. Many models are immediately equipped with cables or cords of the required level of tensile strength.

• The length of the power cable should be estimated to help you decide in advance where to install the connection point.
• Pay attention to additional pump options and completeness. Here, the important parameters can be considered the presence of degrees of protection against overheating, against idling. Many models are immediately equipped with check valves, filters for mechanical water purification. It is very good if the set of the device immediately includes the necessary fittings (fittings, couplings, etc.) to connect the pump to the intake pipe.
• An important selection parameter is always the brand of the product and its cost. The pump is usually purchased with the expectation of long-term operation, so it is better to purchase high-quality equipment from well-known manufacturers - "Grundfos", "DAB", "Pedrollo", "Wilo", "Metabo", "Marina-Speroni", "QUATTRO ELEMENTI". Among domestic manufacturers, you can safely give preference to the Jileks technique - the product range includes a special Vodomet line specifically for wells. Well pumps of the brands "Vodoley", "Elitech", "Caliber", "Belamos" and others deserve good reviews.

In any case, whichever model is chosen, it is worth evaluating the manufacturer's warranty obligations and, preferably, the degree of development of the service network of this brand in your region.