How to choose an automatic pumping station for a water supply system

Which pumping station for a private house to choose

1. When choosing a pumping station, the main criterion is the compliance with the technical characteristics of the unit and the calculated data.

2. If there is no need to solve additional tasks, a standard NS with a hydraulic accumulator and a pressure switch is selected.

3. The material of manufacture can be cast iron - although it is heavy, it does not rust and practically does not make noise.

4. If you need to get the suction hose to the depth of 10 to 15 m, a model with a built-in ejector is taken.

5. With a more difficult option regarding the mark of the mirror and the length of the horizontal section, the modification is selected with an external ejector.

6. The equipment must have protection against overheating and dry running.

Specifications

Regardless of the depth of the well (8.10, 15 or 20 meters), all pumping stations are divided into domestic and industrial.For a private house, household units are used. However, they may have different performance characteristics.

In order for your unit to meet the needs of the family in water, as well as the parameters of the hydraulic structure, it is necessary to pay attention to the following technical characteristics when choosing:

equipment power, measured in W;
device performance in cubic meters per hour (this characteristic is selected after determining the needs of residents for water);
liquid suction height or the maximum mark to which the pump can raise water (these characteristics depend on the depth of the water intake, for example, for wells with a depth of 15-20 meters, you need an aggregate with an indicator of at least 20-25 m, and for wells with a depth of 8 meters, a device with a value 10 m);
the volume of the accumulator in liters (there are units with a volume of 15, 20, 25, 50 and even 60 liters);
pressure (in this characteristic, it is necessary to take into account not only the depth of the water mirror, but also the length of the horizontal pipeline);
additional protective functions will not interfere (protection against "dry running" and overheating);
it is also important to consider the type of pump being used. For example, a submersible pump is mounted in a well, so it does not make noise during operation, but it is more difficult to repair and maintain it.

A surface-type unit is easier to maintain and repair, but makes more noise during operation.

To make it easier for you to choose a unit suitable for a country house, we give approximate technical characteristics of such a device:

the power of the device should be in the range of 0.7-1.6 kW;
depending on the size of the family, a station with a capacity of 3-7 cubic meters per hour will suffice;
lifting height depends on the depth of the well or well;
the volume of the hydraulic tank for one person is 25 liters, with an increase in family members, the volume of the storage tank should increase proportionally;
the choice of the device for the maximum pressure should be done taking into account the depth of the hydraulic structure, the length of the horizontal pipeline leading from the unit to the house, as well as the height of the house (if there are water consumption points on the upper floors: bathrooms or bathrooms);
well, if the device will have protection against "dry" operation

This is especially important for hydraulic structures characterized by unstable water levels. Then the pump will not be able to pump out all the water and run idle;
in addition, a surface-type pumping station will need protection against motor overheating

The thing is that in submersible units, the motor is constantly in the water, so it is effectively cooled. But the motor of a surface station can easily overheat and fail. To prevent this from happening, you need protection against overheating, which will work in time and turn off the pump.

Choosing a location for a water supply station

When choosing a location for a pumping station, it is necessary to focus on the characteristics of the hydraulic pump. Every ten meters of a horizontal pipe between the water source and the pump reduces its suction capacity by 1 m. If they are supposed to be separated by more than ten meters, then the model of the pump unit must be selected with an increased suction depth.

The automatic station of the autonomous water supply system can be located:

• on the street in a caisson near the well;
• in an insulated pavilion built specifically for pumping equipment;
• in the basement of the house.

The stationary outdoor option provides for the arrangement of a caisson and the laying of a pressure pipe from it to the cottage below the freezing level of the soil. When installing a year-round pipeline, laying it below the seasonal freezing depth is mandatory. When arranging temporary summer highways for the period of residence in the country, the pipeline is not buried below 40 - 60 cm or is laid on the surface.

If you install the station in the basement or basement, then you do not have to be afraid of the pump freezing in winter. It is only necessary to lay the suction pipe below the freezing line of the soil so that it does not freeze in extreme cold. Often a well is drilled right in the house, then the length of the pipeline is significantly reduced. But not in every cottage such drilling is possible.

Installation of water supply pumping stations in a separate building is possible only if the equipment is operated during a period of positive temperatures. However, for areas with very low winter temperatures, this option, designed to function all year round, needs to be insulated or a heating system installed. It is better to immediately mount the pumping station right in the heated house.

How to choose a pumping station

The characteristics of the station are affected not only by its type. Case materials are also important. Cast iron, for example, minimizes pump noise, but is heavy and prone to corrosion even with good moisture protection. Steel is lighter and stainless steel does not deteriorate when exposed to oxygen and moisture. However, there is a lot of noise from stainless steel pumps.

An alternative to cast iron and steel are plastic systems.Their bodies are made of high-strength polymers. For those, the price is low, and the physical parameters in contact with water are unchanged, and the weight is small, and the noise is minimal.

Inside the pump housing are electrical components. To work effectively, they must be protected from moisture, dirt, dust. The possibility of their penetration into the case is reflected in the marking with numbers next to the letters IP. The maximum protection is 54 units.

If the water in the well does not meet the Sanpin requirements, the pump must have coarse and fine filters. With proper fluid quality, a coarse filter is sufficient. It will remove the sediment from the water. If it enters the system without a filter, the equipment will wear out faster.

For non-stationary surface pumps, carrying is important

These are handles by which you can lift and move the equipment. Of the technical characteristics, the volume of the accumulator is important. A large one makes the system more expensive, but allows it to turn on and off less often, saving electricity. If the latter is turned off, a capacious accumulator provides a solid supply of water.

Before choosing a pumping station for a private house, you also need to pay attention to the compliance of its power with the needs of home ownership. An average of 0.7 cubic meters of water passes through a working car wash per hour

The same amount is needed for a dishwasher, a washing machine, a shower and a watering hydrant. For a bath, the indicator is 1.1 cubic meters, and for a washbasin, bidet and toilet bowl - 0.4. A minimum of 10% must be added to the calculated water consumption. If the station will work without a margin of safety, it will quickly fail.

For most private houses, there are enough stations pumping into hour 4-5 thousand liters water.It is convenient to make accurate calculations of needs by indicating points of consumption and their number, for example: 1 household tap, 2 kitchen sinks and 2 washbasins, 1 bath. Further, the possibility of simultaneous operation of water-consuming devices is prescribed. This will help calculate the peak demand by selecting the appropriate station.

Installed at one depth, the water intake of the station is usually carried out from another. This parameter (the ratio of vertical pipes to horizontal ones) must also be taken into account with an increase of 15%. You can calculate the depth of the fence by adding the depth of the well and divided by 3 the distance of the station from it. The unit of measurement is meter.

The selection criteria also include additional equipment options, for example, protection against overheating, idling. The function is possible in automatic models. The system turns off the motor when the water supply is interrupted.

This prevents overheating of the engine, its breakdown. However, there are budgetary ways to avoid dry running, for example, a portable float. It is a floating plastic housing with an electric switch, a lever and a steel sphere inside.

The float is installed in the tank. The ball changes the position of the lever, if it changes at the body. This switches the necessary contacts between the three wires. They move away from the cable, and that one from the switch.

Float signals, as well as an automated sensor system, turn off the station motor outside the water supply. In order for the system to work properly, the plastic box must be airtight, and the supply cable must be moisture resistant.

Criteria for the selection of pumping units

When choosing a pumping station, it is necessary to take into account both the characteristics of the equipment itself and the features of the water intake source located in the summer cottage.One of the important parameters is the pump power, which in different models varies from 0.6 to 1.5 kW.

In order to calculate the optimal power of the station, a number of factors must be taken into account: how many water points are available in the house and on the plot, how far the well is from the pump, how much water the source can give in a certain period of time. For the correct calculation of the power of the pumping station, it is necessary to take into account the number of plumbing fixtures into which water will be supplied

For the correct calculation of the power of the pumping station, it is necessary to take into account the number of plumbing fixtures into which water will be supplied

Many people think that the more powerful the station, the better, but this is not always the case. If the pump capacity is higher than the capacity of the water well, then it can dry up very quickly. In addition, an overly powerful unit requires a lot of electricity.

This indicator is closely related to such a parameter as productivity (the volume of liquid that the device is able to pump per unit of time). When choosing a model, it should be taken into account that its productivity should not exceed the capabilities of the well. For a summer cottage for seasonal living, a pump with a capacity of up to 3 m3 / h is enough for a wave.

Another important characteristic of the equipment is the volume of the water storage tank. Everything is simple here - you need to calculate how much liquid is consumed daily for domestic needs, watering, cooking, and, based on the indicators obtained, choose a station with a drive of the required volume.

Modern models are equipped with a hydraulic tank with a volume of 18 to 100 liters.The most popular are 24-50 l installations, which are the best option for a family of three to four people.

On sale there are stations with a tank volume of one and a half liters and a power not exceeding 600 watts. They are mainly used for irrigation and pumping water. If the cottage has a storage tank, you can buy equipment without a tank, which will be much cheaper.

The service life of the unit largely depends on what material the accumulator body is made of. Manufacturers offer plastic, cast iron and metal tanks.

In choosing a pumping station equipped with a manufacturer, the type of pump is of no small importance:

Plastic containers are lightweight, operate almost silently, but their service life is short, cast iron structures win in terms of cost, but they are heavy and can corrode. Steel drives are considered the most reliable and durable, but they are not without drawbacks: they work noisily and are expensive.

When choosing a pumping station, it is also necessary to take into account the nature of the source (natural reservoir or well, the degree of its filling, the depth of the water), how far the pump is located, the maximum height of the water supply

The best centrifugal pumping stations

Such models are characterized by high performance, which is provided by a special mechanism for lifting water. Penetrating between the blades, it receives the necessary acceleration due to their rotation. Centrifugal pumps are chosen if it is necessary to create a stable pressure and the full operation of several consumers.

Grundfos MQ 3-35

5

★★★★★
editorial score

100%
buyers recommend this product

See review

The main features of the model include ample opportunities for automatic adjustment of operating modes. When the water level in the system drops, the device stops functioning and tries to turn it on every 30 minutes for the next day.

The maximum pressure is 35 meters, the suction depth is 8 m. Small dimensions and silent operation allow you to place the unit in any convenient place, including in a residential area.

Advantages:

• full automation;
• low noise level;
• pressure and water flow control;
• check valve;
• long service life.

Flaws:

high price.

Grundfos MQ 3-35 is designed for pumping water from wells or wells. The unit can be used in country or garden plots, in farms.

Gardena 5000/5 Comfort Eco

4.9

★★★★★
editorial score

95%
buyers recommend this product

The main feature of the model is high productivity - 4500 liters per hour. It is provided thanks to the engine power of 1100 W and a maximum pressure of 5 atmospheres. The pump is equipped with a non-return valve and a pre-filter to prevent water return and coarse foreign particles from entering the pump.

Thanks to the adjustable eco-mode, the unit is able to save up to 15% of electricity. The owner can also choose to manually or automatically adjust the basic settings. For this, a convenient multi-function switch is used.

Advantages:

• saving electricity;
• high performance;
• powerful engine;
• durability.

Flaws:

installation complexity.

Gardena Comfort Eco can be used to establish a water supply system in a private house.The performance of the station is enough to solve any business problems.

Denzel PS800X

4.8

★★★★★
editorial score

88%
buyers recommend this product

Thanks to the power rating of 800 W, the model is capable of lifting water to a height of up to 38 meters. The capacity of the station is 3200 liters per hour. This is enough to ensure a stable and powerful pressure at several flow points at the same time.

The device is equipped with a pressure gauge that allows you to control the pressure in the system. The case is made of stainless steel that promotes long work in the conditions of the increased humidity. Wear resistance of the impeller is guaranteed by multi-component plastic, resistant to friction and deformation.

Advantages:

• durability;
• high performance;
• powerful engine;
• work in automatic mode;
• dry run protection.

Flaws:

installation complexity.

Denzel PS800X should be purchased for pumping water in residential water systems. An excellent choice for owners of cottages, farms or summer residents.

Marina CAM 88/25

4.7

★★★★★
editorial score

86%
buyers recommend this product

The model is distinguished by the presence of a 1100 W bipolar motor with overload protection. The suction depth of the device is 8 meters, the volume of the complete tank is 25 liters. The unit is able to automatically maintain the required pressure in the system and does not require special maintenance.

Small dimensions allow you to install the station in any convenient place, and the low noise level during operation facilitates installation in close proximity to living quarters. A capacity of 60 liters per minute is enough to meet the needs of a large family and household needs.

Advantages:

• powerful engine;
• bulk tank;
• high performance;
• cast iron body;
• long service life.

Flaws:

heating during operation.

Marina CAM is easy to install and operate. It can be used for the stable pumping of water in large volumes from wells, wells or ponds.

Which pumping station is better to buy

For the stable operation of the water supply system or pumping liquid, a pumping station is used. In order to choose the right model that meets the individual characteristics of operation, it is necessary to take into account a number of parameters. These include the height of the water rise, the volume of the accumulator, the material of manufacture, technical characteristics and installation method.

Lift height is one of the key criteria for equipment selection. It largely depends on the type of pumping station:

• The productivity of single-stage units is low. Their lifting height is 7-8 m, however, they provide a stable pressure and work silently.
• Multi-stage complexes use several impellers, due to which their efficiency is significantly higher, and the pressure is more powerful.
• Water intake from a depth of up to 35 meters can be carried out by models with a remote ejector, but they are much more expensive than their counterparts.

The main technical characteristics of the pumping station should include performance. It determines the volume of water that the equipment is capable of pumping, and its pressure in the system. It also affects power. To ensure normal water pressure at several flow points at the same time, the power of the station up to 2 kW will be sufficient.

The volume of the storage tank affects the frequency of switching on the pump and the water supply in the event of a power failure. A capacious reservoir contributes to the durability of the electrical windings and the ease of use of the water supply system during power outages. The optimal indicator of the volume of the tank for working in a private house is a value of about 25 liters.

Attention should be paid to the material of manufacture of the pumping station. It largely determines the durability and permissible conditions for maintaining equipment.

For installation in rooms with high humidity, it is recommended to choose a model, the body and main components of which are made of stainless steel. Plastic impellers reduce the cost of the unit, but they are less resistant to wear than steel or cast iron elements.

To extend the life of the pump, it is worth considering the presence of pressure switch protection systems. The functions of protection against dry running and overheating will ensure that the pumping station is turned off if there is no water or the permissible temperature of the power unit is exceeded.

Determination of a place for a water supply station

When choosing the location of the station, it is necessary to take into account its technical capabilities, climatic conditions and features of the water supply system. Thus, you need to do the following:

Bring the station as close as possible to the water intake

It is important to consider that when the horizontal pipeline between the water intake and the pump is extended by 10 meters, its working depth decreases by 1 meter
Particular attention should be paid to the insulation of the electrical cable and its connection points. It is important to remember that water is connected to this equipment, and electricity is connected.
Failure to follow this rule may result in an accident.

The equipment must be protected from the negative effects of natural precipitation (rain, snow, direct sunlight). Take care of its insulation with heat-insulating materials in advance. Consider its sound insulation, which will allow you to be close and not be negatively affected by unnecessary sound. It is important to take care of the insulation of the pipeline that connects the water intake to the station and the station to the home system. To do this, it deepens below the freezing point, or is insulated with special heat-insulating materials or a heating electric cable.

Thus, when determining the location for the water supply station, it is necessary to create a special microclimate where high humidity is unacceptable, which will negatively affect the service life.

When creating the necessary conditions, you can enjoy high-quality uninterrupted water supply of a country house away from the main highway for a long time.

Peculiarities

The water supply pumping station serves private sector homes within the city and beyond. It doesn't function on its own. This is an integral part of an autonomous system that is needed to supply water from a source to utilities. The main task of the station is to maintain a stable pressure level. When it is stable, water is sucked in and transported evenly. Often summer residents and home owners try to save on the operation of the station by replacing it with a garden pump with hoses and an automation unit. But the simplified version does not control pressure. Therefore, it is not able to prevent water hammer.

Water hammer is a sudden surge of water in pipes.It is caused by a change in the speed at which the flow of water moves inside the pipes. The reasons for the jump may be different, and the consequence is the same - a decrease in the life of pipes and valves. All this can lead to an emergency situation and, as a result, only increases the cost of water production. Also, the system of the pump and the control unit does not allow pumping water, adjusting the pressure and temperature.

A full-fledged station has one more function. The water tank in the design serves as a spare water tank. If the electricity is cut off or the water in the source disappears for any reason, for some time the supply of water in the tank allows the system to be used in the same mode

It is important to take into account the possibilities of this reserve when we choose a pumping station.

There are different types of pumping stations according to the device principle, power and other characteristics. All types share several features:

• the station can be connected to any source of water supply: a well, a well, a central water supply system, a natural reservoir;
• the device of the pumping station allows you to adjust the force of water pressure in a tap or a watering hose;
• from one source, water can flow into different channels (to the bathroom, to the kitchen, to the irrigation system of the beds in the garden), without losing pressure;
• the design of the system is carefully thought out, so any of its elements is subject to repair and replacement;
• quick assembly and dismantling if necessary;
• the station consumes electricity for operation, which means that finances are required for its maintenance;
• during operation, the station makes noise - the noise level is comparable to an old-style refrigerator;
• in practice, the operation of the station is not as productive as in the accompanying documents, since manufacturers always indicate the maximum power and performance parameters.