Selection of the pump by head and flow. Finding the right pump for your well

16.08.2018

For efficient water supply country house it is necessary not only to make a well, but also to equip the underground structure with the necessary equipment, the main component of which is a device for lifting water from depth to the surface. The correct selection of a borehole pump will ensure uninterrupted water supply in the cottage and the reliable operation of the equipment itself. What criteria are guided when choosing a pump for a well, and what characteristics of the device will become decisive in this case - these and some related questions will be answered in the article.

Types of pumps for lifting water to the surface

There are now several types of pumps that are used to pump fluids from depth. The main ones are:

superficially established;
submersible vibrating;
submersible centrifugal (rotary).

The first type of equipment is characterized by the fact that the mechanism is on the surface, while an attached pipe (hose) is placed in the water, through which water is sucked. Surface pumps have a limited depth of fluid rise (up to 9 meters), therefore, they should not be considered as full-fledged downhole equipment. With the help of such devices, it is possible to raise liquid only from surface aquifers (verkhovodka), where the quality of water is only suitable for irrigation.

Submersible vibration pumps, which work due to the movement of the membrane and the valve system, are structurally simple, inexpensive and can pump water from a depth of up to 30-40 meters (depending on the power of the model). However, it is categorically not recommended to install such equipment in deep aquifers for several reasons:

strong vibration destroys the well structure;
strong turbulence arising during operation lifts silt and sand from the bottom of the water mine, which pollute the water;
the shape of vibration pumps is not adapted for use in narrow casing pipes, therefore the device often gets stuck in them, after which expensive repair and restoration work has to be carried out.

In short, vibration-type equipment is not intended for use in wells, so there is no point in trying to use it for other purposes. Such products successfully work in Abyssinian wells, pools, and other wide water reservoirs.

In aquifers of medium and deep depth, only rotary equipment is used. Centrifugal submersible pumps are specifically designed to work in narrow wellbore conditions and, if properly operated, will last 10 to 20 years. What is this type of device, we will consider further.

Rotary borehole pumps

Such devices have an elongated cylindrical shape specially designed for ease of installation and removal from a narrow casing pipe. It is characteristic that such devices do not suck in water on their own, the liquid flows into the body by gravity, where it is picked up by a rotating wheel and spins. Centrifugal force throws the water to the top center outlet. This feature of rotary pumps puts forward certain requirements for their installation. It is important to place the devices so that there is always a water column of at least 1 meter above them, which would contribute to the arbitrary flow of liquid into the body through the inlet openings.

Second feature centrifugal pumps, - the need for their constant cooling, which is due to the very high rotational speed of the electric motor shaft. Even the presence of high-quality grease in the bearings does not protect the pump from overheating. The cooling substance during the operation of the rotary type equipment is also water. Without it, the pump fails within a few minutes. This circumstance also puts forward the requirements for the immersion of the device to the required depth, where the pumping equipment under any operating conditions always remains in the water column.

Important! Most modern rotary pump models are equipped with an automatic overheating protection that shuts off the motor if there is not enough fluid around the unit. This allows you to significantly extend the operational period of products.

Thus, only centrifugal equipment is downhole, so the choice must fall on them. It remains to decide on the parameters of the required device and their compliance with the characteristics of a particular well.

Downhole pump parameters

Pumping equipment designed to work in deep wells has the following technical characteristics that determine the choice:

power (head);
consumption (performance);
case diameter.

The first indicator characterizes the force with which the device pushes the liquid. The greater this force, the greater the height of the column of the pushed water will rise. This indicator characterizing the equipment is called head and is measured in meters of water column.

The pump flow rate or capacity (this is the same thing) demonstrates how much liquid the device can pump over a certain period of time. The capacity is expressed in m3 / hour or liters per minute.

It is important that the cylindrical pump casing freely enters / exits the casing, therefore, when choosing, be sure to pay attention to the casing diameter and relate it to the same indicator (internal) of the casing.

Little things, but important, when choosing downhole equipment are the following things:

length and cross-section of the electric cable;
length and strength of the retaining cable;
storage tank volume.

Still, the most significant are the parameters of the pump itself and their compliance with the characteristics of a deep well.

What indicators characterize the well?

For the correct choice of equipment, it is necessary to evaluate some data characterizing a deep well. The following well parameters are of interest:

dynamic water level;
well debit;
inner diameter of the casing.

In addition, when choosing a pump, you will need data on the level of the highest water consumption point in the house and the distance of the main structure from the well.

The first two indicators can be found in the passport underground structure... The dynamic level indicates the height of the water table in the casing during prolonged withdrawal. The pump is set at least one meter below the dynamic level. It is necessary to proceed from this, calculating the height of the rise of water to the level of the mouth of the well. Debit indicates the rate of fluid replacement in the well lumen. This data is needed when choosing performance pumping equipment... Knowing the diameter of the casing will help you not to make a mistake when choosing the appropriate pump indicator.

How is the required head determined

This is the most important indicator of downhole pumping equipment. If you choose a device with insufficient pressure, the water simply will not reach the water intake point. A pump that is too powerful will run halfway and will cause premature wear. So it is important to calculate the required head close to the ideal indicator.

How are calculations done? For this, the following data are summarized:

installation depth of the pump relative to the mouth (head);
the height of the extreme point of water intake;
the distance from the house to the well, divided by 10;
excess pressure (necessary to create a head at the points of water intake), which is equivalent to approximately 20 m head.

The resulting amount will be an indicator that should be guided by when choosing a device that is optimal in terms of power.

Definition of performance

This indicator does not require complex calculations. The pumping equipment consumption should not exceed the debit of the deep well. Suppose, if the inflow in the well is 3 m3, the pump capacity of 2.7 m3 per hour will be quite enough. It is not scary if the flow rate of the device is, for example, 1.5 m3 per hour.

The main thing is not to purchase equipment whose productivity is much higher than the well flow rate. During the operation of such a pump, a situation will constantly arise when the water level will drop to the position of the installation of the suction device. If the latter is equipped with effective automatic protection, it will shut down the equipment. But you need to think about the fact that protection may someday fail, not work and the pump will burn out in a matter of minutes, working dry. Therefore, it is better not to risk an expensive device by making the right choice of its performance.

Important! You need to understand that the performance of the borehole pump will correspond to the one declared in the product passport only with the right choice of pressure. If the power of the device is less than the rated power, the performance will also decrease.

To install the necessary equipment for the well, it must be selected correctly. Numerous parameters are taken into account, including the calculation of water consumption, the required pressure, power.

When choosing a submersible pump, you must focus on a pressure of 2.5 - 3 bar, at the highest point of the water intake.

An important criterion for deep pumps is what kind of cable will be used for them. The selection of a downhole pump is a responsible process, it must be taken seriously so that the equipment works correctly and for a long time.

What do you need to know when choosing a pump?

Borehole pump installation diagram.

When choosing a pump, parameters such as:

The total depth of the well. This information is contained in the attached passport. It is customary to install the equipment at a height of 1 m from the bottom level.
Dynamic water level. The pump must be placed below this level, it is also indicated in the passport. The static level is also important to consider.
The diameter of the well in order to correctly select the size of the submersible pump, its adapter, head, cover for the wellhead.
The flow rate is data on the productivity of the source; the borehole pump should not have a capacity greater than that of the well. Ideally, the choice should be made in such a way that the performance of the equipment is about 5-10% less than the flow rate of the source.
Size, depth of the filter section. The downhole pump must be positioned so that the engine is above the filter. Only in this case the system will work without failures.
Distance from home to well. Not only the horizontal value is taken into account, but also the height to which the pipes rise.
Number of storeys, the location of the highest point of the draw-off.
The place where the automatic equipment for pump control is installed.
A power option that powers the borehole pump.

General criteria for choosing a pump for a well in a suburban area:

Equipment power. The selection of the unit depends on the depth of the source, the required pressure and the planned water consumption for the house. You cannot make a choice without taking this parameter into account.
The depth that the well has. This parameter is important for choosing a pump; many consider it one of the first. For example, surface pumps can only be used for shallow springs and wells, and only deep models are used for water wells.
The choice is made on the basis of what the planned water flow will be, that is, what the pump capacity should be.

Calculation of flow and pressure of water

Selection table for well pumps.

The choice of pumping equipment must be carried out, taking into account the estimated water consumption for the site and the house:

for a shower - 0.2-0.7 l / s;
for a jacuzzi - 0.4-1.4 l / s;
for a bath with standard mixers - 0.3-1.1 l / s;
for sinks, sinks in the kitchen and in bathrooms - 0.2-0.7 l / s;
for taps with nozzles - 0.15-0.5 l / s;
for the toilet - 0.1-0.4 l / s;
for a bidet - 0.1-0.4 l / s;
for a urinal - 0.2-0.7 l / s;
for washing machine - 0.2-0.7 l / s;
for a dishwasher - 0.2-0.7 l / s;
for watering taps and systems - 0.45-1.5 l / s.

To calculate the head, it must be remembered that the pressure in the pipes should be 2-3 atmospheres, and the excess pump power should not exceed 20 m.For example, the immersion depth is 10 m from the ground level, then the calculated losses will be 3 m.In this case the pressure is calculated as follows: well depth + water supply along the vertical shaft + height above the ground level of the upper draw-off point + excess pressure + estimated losses. For this example, the calculation will be as follows: 15 + 1 + 5 + 25 + 3 \u003d 49 m.

When summing up the approximate flow rate per unit of time, it is also necessary to take into account the fact that 5-6 taps are simultaneously opened or a similar number of taps are used. The number of residents, the presence of greenhouses on the site, a garden and other parameters are taken into account. Without this data correct selection impossible.

How to choose a cable for a submersible pump?

Diagram of permissible pump installation dimensions.

The choice of the pump is impossible without the selection of the cable for its fastening. Only a stainless steel product is selected, since it is able to withstand not only the weight of the pump itself, but also the numerous equipment that is used to lift the water up.

The length of the cable is taken with a margin, since special loops are used for fastening, they take 1-2 m each, plus it is necessary to leave a margin of 2-3 m. Clamps are used to fasten the cable.

When choosing a cable, the following values \u200b\u200bare taken into account:

for a diameter of 2 mm, the static load is up to 100 kg;
for a diameter of 5 mm, the static load is up to 650 kg.

It is important, when choosing a cable for the pump, to remember that when turned on, a jerk occurs, the load increases. If you buy a pump with a lot of weight and power, then it is best to take a 5 mm cable for it, which will perfectly withstand all conditions of use. When buying, it is taken into account that the total load includes:

total weight of the pump, engine for it;
own weight of the cable;
the weight of the water that rises through the pipe;
the weight of the power supply cable;
total weight of fittings;
the weight of the filtering equipment that is under the pump.

What type of accumulator is needed?

Hydraulic accumulator selection table.

For the correct choice of the pump, it is necessary to pay attention to which hydroaccumulator will be used. Its purpose is to accumulate a certain volume of water to prevent frequent activation of the pump itself.

When a certain volume of water is reached, the pump turns off until the water is consumed. Each pump has a permitted number of starts per hour, which is not recommended.

Usually these are 20 starts, which, in the absence of a hydraulic accumulator, will be carried out every time the tap is opened. But in the presence of a tank, such inclusions will be rare, which will extend the service life of all equipment.

The presence of a storage tank reduces the likelihood of water hammer, which is detrimental to pipes and other devices.

Qmax is the maximum water flow rate;
Pset - pressure when the pump is turned on;
ΔP is the difference that is observed when the pump is turned on and off;
Nmax is the permissible number of on and off times per hour, usually indicated by the manufacturer for each model separately;
K \u003d 0.9.

When choosing a pump, it must be borne in mind that the pressure of the air mass in it is always 0.8-0.9 bar.

An example of equipment selection for a well

To make the choice of a pump for a well correctly, you can use the following example.

Scheme for determining the pump lift.

Initial data for the well:

the total depth is 100 m;
dynamic water level - 70 m;
the static water level is 75 m;
the diameter of the water well is 133 mm;
the flow rate is 3 m³ / h;
filter installation depth - 95 m;
the equipment control unit is located at a distance of 25 m from the well;
the distance from the well to the entrance to the house is 20 m;
a head is used to decorate the wellhead;
the highest point for water intake is 8 m from the ground surface (3rd floor of the house);
power supply is carried out from a 220 V network, the system is single-phase, there is a possibility of drawdowns up to 190 V.

The selection of a pump for a well is carried out as follows:

First, you need to take into account the number of draw-off points with a permissible flow rate limitation of 2.6 m³ / h. This is 5-6 cranes open simultaneously, the performance of which is average. Even for big house this amount is quite enough.
The depth for installing the pump in the well is 72 m.
For the consumer, the comfort pressure at the highest point should be 2.5 bar. Taking into account the pressure loss at 1 bar rise, a value of 1.5 for the top point is quite acceptable.
For the riser pipe, the total length in this case will be 92 m, and for the supply cable to the control panel, the length is 97 m.
The diameter of the rope is 5 mm, its length is 72 m + 2 m + 4 * 2 m (for rope loops) \u003d 82 m.
For water pipe from plastic, the diameter is better to be taken equal to 40 mm, while the total losses will be approximately 4 m if the flow velocity is 0.8 m / s.
The losses during operation of the filters will be approximately 10 m, that is, approximately 1 bar.
The required total head is H \u003d 1.5 * 10.2 + 70 + (10 + 4) \u003d 99 m.

What kind of pumping equipment should be?

Taking into account all the specified data, the well can be equipped with the following pumping equipment:

Pump for 1.1 kW, power cable for 4 * 6 m³, while the voltage loss will be 2%.
Pump for 1.5 kW, power cable for 4 * 6 m³, voltage loss will be 3.1%.
Pump for 1.5 kW, power cable for 3 * 6 m³, voltage loss will be 2.9% along the entire length.
Pump for 1.4 kW, power cable for 3 * 6 m³, length loss will be 2.7%.

For the presented system, it is best to take a 150 liter hydraulic accumulator for the first 3 options. It is recommended to install a 5 kW voltage stabilizer at home.

The choice of a pump for a water well is a responsible process. Not only the characteristics of the pumping equipment itself are taken into account, but also numerous parameters. This is the length of the cable, the presence of a hydraulic accumulator and other elements of the system. During the selection, attention should be paid to the water consumption for the house and the site. Only in this case can the pump be considered fully suitable for a particular well.

Uninterrupted water supply to the house directly depends on the quality of the pump used. This device is the "heart" of hydraulics, and must have sufficient output characteristics. Professionals prefer to select a borehole pump with a small power reserve, which ensures that it does not operate at full load.

Criterias of choice

In addition to the dimensions of the apparatus, they are guided by the physical indicators of the hydraulic system, which are composed of the following indicators:

optimal head;
pressure loss factor during fluid transportation;
pressure drop when turning on or off the water pump;
maintainability and comfortable operation.

Equipment cost is also a popular criterion. There are devices from different manufacturers on the market. Legal products always have a quality certificate. Popular brands - Sprut, Aquarius, Wilo, Hydro-vacuum.

Household appliances used in the home operate on single-phase power networks. For work in an industrial environment, a borehole pump is selected from three-phase models.

Popular models

The inner diameter of the well imposes restrictions on the dimensions of submersible installations. Consumer devices are offered in two formats:

three-inch (on the outer belt does not exceed 75 mm);
four-inch (outside limited to 100 mm in diameter).

The first option is universal, and is suitable for most wells, but has a lower output power. Choose a pipe for it at least 89 mm. In the second case, the casing is limited to 114 mm bore.

The following popular models are covered by the dimensions described:

for 4 inches Aquarius (up to 105 mm);

for 4 inches Pedrollo 4BLOCKm (up to 100 mm)

for 3 '' Grundfos SQ (up to 75 mm)

When selecting a pump for a well according to parameters, it is worth considering the immersion depth of the apparatus. The overwhelming majority is limited to the 50 meter mark. An example is the SAER equipped with floating impellers. An additional unit serves as protection against "dry running", and it is also customary to install a system that minimizes voltage drops.

How to choose a voltage regulator

The main feature of the equipment operation is high inrush currents - during switching on, its power increases several times, due to which the operating currents exceed at least 4 times. At the moment of switching on, the voltage in the network drops sharply, which forces the unit to work at its limit. And this process is repeated every time he needs to turn on to pump water. In addition to the fact that the unit itself operates at the power limit, it wears out faster, so all other electrical appliances connected at the moment cannot cope. This is especially fraught with refrigerators and televisions that are constantly connected to the network.

Relay voltage regulator

The optimal solution would be to install a voltage stabilizer, which will create a normal operating mode and bring the equipment out of stress mode.

The most important parameter to consider is the starting current and motor power. This indicator, as a rule, is reflected in the technical documentation (product passport), but you can calculate it yourself.

We take for the original domestic Pump Vodomet 60/92 power P \u003d 1100 W.

IU \u003d P: 220 V x 0.8

where IU is the value of the operating current;
Р - equipment power;
220 V - mains voltage;
0.8 - power factor (0.8 cos f).

1100 W / 220 V x 0.8 \u003d 4 A

Accordingly, the working current of the Water Jet is 4 Amperes. To determine the inrush current, the value obtained must be multiplied by 4 (the standard multiple at start).

The starting current of the Water Cannon 60/92 with a power of 1100 W will be 16 Amperes. This indicator corresponds to a 5000 VA voltage stabilizer.

For those devices that are equipped with an electric motor, voltage stabilizers with relays, which differ in maximum speed, will be much more rational.

For borehole pumps, it is necessary to choose voltage stabilizers with relays (relay).

Calculations

It is not worth purchasing a downhole installation in advance, since the physical values \u200b\u200bof the well are not yet known. First of all, you need to get a passport for it, carry out the calculation, and only after that will make a competent selection according to the initial parameters.

It is customary to build on:

the number of parsing points, which include water taps, drain barrels, dishwasher or washing machine;
the number of users who constantly or systematically use water;
the need for water is influenced by the lifestyle of the owners and the seasonality.

In summer time peak loads by fluid intake. This must be taken into account in advance, since later it will not be possible to raise the pump power, you will only have to change it.

The basic formula by which the calculation is carried out includes several important parameters described in the well certificate:

Debit. The indicator affects the performance of the equipment. It demonstrates the volume of liquid that the well can provide to the consumer for a limited period of time (m3 / h);
Hole diameter and depth. The values \u200b\u200ballow you to select the model of the unit according to the external dimensions and limit the pressure level calculated in m.
Static level. Depth to the surface of the water when the pump is not running, when there is no pumping.
Dynamic level. Depth to the surface of the water during pumping. It limits the lowering height of the equipment.
Filter node parameters. Inside the shaft, a casing is mounted, on the lower part of which a column with a perforated section is installed.

Be sure to take into account the distance to the residential building in which the hydraulic equipment is mounted.

With a casing, the choice of equipment is much wider. In particular, this applies to vibration, which during operation emits significant vibration, which leads to subsidence of rocks and silting of the mine.

Calculation example

We take as approximate data two-storey house with a couple of toilets, a kitchen and one washing machine. It is believed to be home to four.

The well has the following parameters:

depth 65 m;
debit 3.5 m;
diameter 122 mm;
dynamic level 35 m;
static level 20 m;
a house with a hydraulic accumulator is removed from the well at a distance of 12 m, which will reduce the pressure by 1.2 m in height;
the ceilings in the room are 3 m.

Calculations can be made using online services, but they may not always take full values \u200b\u200binto account. It is preferable to perform the operation yourself.

We determine the performance of the borehole pump, focusing on the debit and the maximum value during the analysis of water. Let's assume all consumers are active. Let's summarize the standard indicators based on the expense table. As a result, we get the required performance with a working shower, washing machine, toilet and sink:

0.7 + 0.7 + 0.4 + 0.7 \u003d 2.5 m 3

The next point should be the calculation of the pressure. For the operation, you will need a standard formula:

H w \u003d P s x 10.2 + hi

Ps - the required pressure in the water supply system, usually 2-3 atm;
10.2 - constant coefficient;
hi is the total head calculated from the available well values \u200b\u200band distance, m;

h i \u003d i1 + i2 + i3 + i4 + i5

i1 - dynamic level value;
i2 - distance from the building;
i3 - rise to the highest point of water intake;
i4 is the required pressure at the maximum height, take 2.5 m;
i5 - technical head loss, takes 2 m.

h i \u003d 35 + 1.2 + 4.5 + 2.5 + 2 \u003d 45.2 m

H w \u003d 2.5 x 10.2 + 45.2 \u003d 70.7 m

Based on the results of calculations, the following parameters were obtained for the future unit:

The productivity of the device must be at least 2.5 m 3 / hour. Taking into account the available well debit, it is worth choosing a device with a higher productivity, since the available values \u200b\u200ballow it. For this situation, an indicator of 3.5 m 3 / hour will be optimal.
The design head is 70.7 m. This value is the minimum allowable. Downhole manufacturers indicate it in the instructions and on the case.
Based on the diameter of the shaft, we select the device up to 100 mm in diameter. The presence of a gap between the pipe and the body of the apparatus is mandatory.
The machine can be lowered to a depth of 40-45 m. This criterion is also involved in the choice of depth installation.

All calculations are carried out on the basis that the fence is carried out at the operating point. This area allows the device to function without overload, with maximum efficiency.

Additional equipment

For proper operation of the system, you will have to stock up on a diaphragm tank to balance the pressure drops in the system. It is important to run the entire electrical part through the electronic control unit. Pressure control is carried out by means of analog sensors, manometers.

The pump is suspended in a shaft on a steel cable covered with insulating material. The connections are made using adapters and clamps made of stainless steel or hard plastic. The supply cable is selected depending on the power of the connected unit. Do not choose high power single phase pumps. They need starting currents that are many times higher than the nominal values. Then you will have to mount a powerful stabilizer, the costs of which will not be justified.

The basis of performance is the correct combination of all device parameters. You should not buy more powerful equipment than specified in the calculations, since it will not coincide with the mine debit. Even in the presence of a large amount of water during operation, an abnormal situation will constantly arise when it falls below the operating point due to the power of the unit. Of course, a high-quality pump is equipped with dry-running protection, but it cannot always work in a narrow hole, and then the device burns out within 5-6 minutes.

But the purchase of a low-power device is unlikely to satisfy all the needs for water, since its indicators will simply not be enough. The relevance of the "golden mean" in terms of performance and price has not yet been canceled.

VIDEO: Selection of a borehole pump by parameters

IN country houses it is almost impossible to connect to the central water supply. What to do? Conduct your own water supply system, make a well or a well. The second option is more convenient, but requires solving a lot of different issues.

How to choose a submersible pump for a well?

Thanks to our online calculators for calculating pump power for wells, you can solve the question asked in a few minutes, taking into account several parameters to determine the accuracy of the answer received. This will be true for submersible and surface well pumps.

Well parameters:

depth;
water quality;
volume of water pumped per unit of time;
distance from water level to soil surface;
pipe diameter;
the daily volume of fluid used.

Yes, this is a very troublesome business, it requires precise engineering approaches, as well as the study of many formulas for calculating the power of submersible and surface pumps and tables that will help to accurately determine the required indicators.

Self-calculation of pump power

How to choose a pump for a well according to the parameters of the unit without professional help? This is possible, first of all, the head and flow rate of the well should be taken into account. Consumption is the volume of water in a certain amount of time, and head is the height in meters to which the pump is able to supply water.

An example of calculating the calculation of the power of sediment for a small house:

So it turns out that a family of three consumes 22 liters per minute, but force majeure should also be taken into account, which will increase the need for water per person. Therefore, a certain average will be 2 cubic meters per day. It turns out: 5 cubic meters - the daily water consumption.

If the height is calculated for 9 meters at home, then we do the operation of calculating the power of the sediment using the formula like this: (9 + 6) * 1.15 \u003d 17.25. This is the minimum characteristic, now the distance from the water mirror in the well to the earth's surface must be added to the design head. Let the number be 40. What happens? 40 + 17.25 \u003d 57.25. If the water supply source is 50 meters from the house, then the pump must have a pressure force: 57.25 + 5 \u003d 62.25 meters.

Here is such an independent formula for calculating the pump power for a well in kW. Exactly the same figures can be obtained when calculating online, using a simple table in which the consumer must enter data about the depth of the well, the water mirror, the area of \u200b\u200bthe site, the number of people living in the house, as well as provide additional information on the number of showers, sinks, bathroom room, washbasin, washing machine, dishwasher and toilet.

Calculations are done in one click. They are reliable and up-to-date for the period of validity of the data received from the consumer.

Calculator for calculating pump power for a well

What else does a person need to know in order to qualitatively install a water supply system in a house? There are several types of pumps: submersible, surface, stationary.

Surface - have a low cost, designed to work without immersion in liquid. Recommended for work up to 7 meters, otherwise the water will be dirty and of poor quality.
Submersible - centrifugal, reliable and efficient, help to effectively purify water from sand. Today these are the most popular and demanded models. Screw - they work not only at home, but also in open water.
Pumping stations.

Important: it is unacceptable to save on pump power, thus, an autonomous system will not be able to properly rinse the cleaning filters by running dirty water in the house. You also need to take into account that some manufacturers indicate the maximum characteristics of the product in the product passport, and you need to pay attention to the nominal parameters - working, so that the performance is normal, without pitfalls and other troubles.

Before making a calculation of the pump power for a well, you need to take care of the quality of the pipe system that will let water pass at a certain pressure. These are metal and polypropylene products. The latter are much more often used in everyday life, but have low resistance to temperature changes and pressure in the system.

Attention: the pump is chosen for a long time, and therefore it is important to become familiar with all market offers, choosing well-known brands with the presence of service centers for the repair and maintenance of your system.

Advice: it is better to take a pump with automatic equipment, if the motor overheats, the system will stop on its own, otherwise it will fail.

Calculate the power of a submersible and surface pump for a well on our website, and save time when installing a water pumping unit.

Parameters
Well depth, m.
Mirror of water, m.
Land area, are
Number of residents
The house has
Shower
Sink
Bath
Washbasin
Washer
Dishwasher
Toilet bowl