How to choose a pumping station for a private house

A pumping station for a private house is always better than just a pump. It comes with a hydraulic accumulator and pressure switch. Sometimes an additional ejector - built-in or remote. To choose such equipment is far from easy. How to do it correctly is described in the article.

The best manufacturers of pumping stations for private houses - which company to choose

Choose a pump station can be different. Of course, first of all you need to start from pressure, water demand, power, source rate. Moreover, it will be annoying to buy low-quality goods, “having on hand” all the technical data.

To avoid trouble, it is better to pre-compile a list of the best companies, three of which are:

• Gilex;
• Gardena;
• Marina.

Following the fact that the buyer has paid attention to the best companies, we recommend immediately choosing a specific model of the pumping station. To do this, just read our rating.

The principle of operation and the device pumping station for a private house

Water supply from an external source (well or well) to the mixers of plumbing fixtures is possible either with a pump or with a pumping station. For many reasons given below, the second option is more preferable.

The pumping station for an hour consists of the following elements:

1. Surface electric pump;

2. Hydroaccumulator;

3. Pressure switch;

4. 2 check valves;

5. Wiring;

6. Automatic control and management unit;

7. Suction, pressure and internal connecting hose.

A classic pump pumps water, as a rule, from a depth of up to 9 m - with an integrated ejector, this figure rises to about 15 m, if the specified element is external, then the suction is available from 50 m.

The pumping station operates as follows:

1. The unit turns on;

2. Through the suction pipe, equipped with a grid and a check valve, the liquid is fed into the pump;

3. From the latter, transfer to the accumulator is performed - a metal tank with a rubber bulb inside;

4. Upon reaching the maximum permissible pressure in the battery, a relay is activated;

5. Engine shut off;

6. Water from the tank comes to collapsible points;

7. In the course of consumption, the pressure in the tank drops to the minimum critical value;

8. The unit turns on again.

When constructing a water supply system, it is necessary to take into account that the equipment must be installed in a warmed place, the supply pipes must lie below the ground freezing mark, the pump must be protected from dry running and overheating.

Types of pumping stations for private homes

Pump station without ejectors

Arrange water in a private house using a pump or pumping station.

In the first case, every time the crane is opened, the unit is turned on, and as a result, “rapid” wear of the working parts and high energy consumption are “ensured”, which, by the way, is sometimes absent in the network for one reason or another.

In the second variant, the design, in addition to the self-priming device, provides for a hydroaccumulator, which eliminates the shortcomings of the direct supply of water - it accumulates a specific volume of liquid, and for some time it works autonomously.

It consists of an external metal container and an internal rubber bulb that separates the tank into water and air compartments - the second one in working condition creates the necessary pressure for the first one.

The unit is switched on only when, as a result of long-term consumption, the pressure has dropped to a critically low figure. As a rule, the design consists of the upper pump and the lower tank, the capacity of which is usually 24, 50, 100 l - its choice depends on the number of inhabitants and water points.

Benefits:

• the integrity of the structure - there is no need for extra wiring;
• automation of operation, as a result, no need for additional maintenance;
• energy efficiency;
• due to the rare inclusion increases the life of the equipment;
• optimal performance + protection against "dry running" and overheating;
• Convenience of operation - all important nodes are located nearby.

Disadvantages:

• depth of water intake does not exceed 9 m;
• noise - especially in equipment made of stainless steel;
• individual construction blunders.

This machine is an excellent solution for providing the house with water not only for water supply, but also for heating. The greatest disadvantage is a slight suction depth, which can be increased with the help of ejectors or a multi-stage feed scheme.

Pump station with integrated ejectors

Depending on geological conditions, not every aquifer is accessible to a surface pumping station. Its capabilities end at a depth of 9 m — special adaptations are used at lower static and dynamic elevations.

If you need to pump water from a depth of up to 15 m, equipment is used with an integrated ejector consisting of a nozzle, a mixer, a suction receiver and a diffuser. Thanks to this device, internal recirculation is performed, as a result of which the local flow rate changes, as a result, kinetic energy is transferred from the medium to a less rapid one.

Ultimately, a significant vacuum is created, allowing water to be sucked from depths inaccessible to standard models. Such an improvement does not go without a trace, since part of the energy is expended to recirculate the liquid in the ejector loop, as a result, the efficiency of the station decreases.

Benefits:

• compact equipment consisting of many nodes;
• automatic control with the ability to switch to manual;
• increased depth of the fence - up to about 15 m;
• insignificant weight and dimensions of the ejector;
• high level of protection;
• constant operating comfort.

Disadvantages:

• increased noise
• drop in efficiency;
• need for a separate room.

NS with a built-in ejector are suitable, at a minimum, when 2 results are achieved: it was possible to go deeper into the necessary mark; head and performance provide full water supply.

Remote Ejector Pumping Station

In some cases, compared to the built-in, the ejector is more efficient, namely, when the fence needs to be carried out from great depths (up to 50 m), and the horizontal pipeline must be pulled at a distance of 25 ... 40 meters. In this situation, the device is lowered into the water column and is connected, forming a recirculation circuit, 2 pipes with a pump.

The principle of operation is the same as with the built-in nozzle, but due to the difference of 2 diameters and other structural elements, a more significant vacuum is created, as a result, the suction force is more powerful.

The system scheme provides for the remoteness of the ejector from the pumping station; therefore, when installing the equipment, its low speed is taken into account - installation is possible in any suitable place.

Benefits:

• efficiency of operation with additional requirements for the depth of the fence (up to 50 m) and the distance of transportation;
• lack of noise - the equipment can be installed indoors without a strict choice in terms of sound insulation;
• automatic control and management;
• the possibility of water discharge under the conditions of lack of operation, boundary deepening of pipelines and extremely low temperatures;
• durability with proper operation;
• availability of use for the average consumer.

Disadvantages:

• more complex design;
• low efficiency - a drop in efficiency of 30% compared with the standard unit;
• high price.

This pumping station is the best way out when the fence is located remotely from the house and the aquifer is deep.

Options for choosing a pumping station for a private house

Performance

The pumping station, based on its performance, should fully provide water to residents of the house. Since it is impossible to take more water than it can do, the machine’s performance should not be higher than the flow rate of the source.

When calculating the required volume per unit of time, the following are taken into account: the number of mixers, their consumption depending on the plumbing fixtures, the probability of use, the number of inhabitants, the consumption rate.

The data obtained do not always agree with reality, therefore the best option is to rely on your own experience, while taking into account the following approximate costs in l / s:

1. Toilet bowl - 0.1;

2. Kitchen sink - 0.15;

3. Washbasin - 0.1;

4. Shower cabin - 0.25;

5. Bidet - 0.08;

6. Dishwasher - 0.2;

7. Washing machine - 0.3;

8. Watering faucet - 0.3.

Volume of accumulator

Since the direct feed is performed through the accumulator, it is necessary to correctly determine its volume.

The most popular containers:

1. 24 l - suitable for a family of 2 people;

2. 50 l - for 3 ... 5 people;

3. 100 liters - for 6 or more residents.

Head pressure

The required head according to the simplified scheme is calculated by the formula: (vertical distance between the highest mixer and unit) + (1/10 of the horizontal section length) + (free head at the crane - from 3 to 10 m).

Power

The power that affects both the efficiency of the NA, and the payments for electricity, must be optimal - depending on the associated parameters should be in the range from 500 to 2000 watts.

Body material

Cases of pumps are made of cast iron, stainless steel and plastic.

Which pumping station for a private house to choose

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

2. In the absence of the need to solve additional tasks, a standard HC with a hydraulic accumulator and a pressure switch is selected.

3. Cast iron can be a material of manufacture - although it is heavy, it does not rust and makes virtually no noise.

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

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 be protected from overheating and "dry running".

How much is a pumping station for a private house

1. Without an ejector - Jilex Jumbo 70/50 H-24: head 45 m; productivity is 3,9 m3 / h; power 1,1 kW; the volume of a hydrotank is 24 l. 7.8 ... 10.9 thousand rubles.

2. With integrated ejector - Gardena 3000/4 Classic Eco: 40 m head; capacity 2.8 m3 / h; power is 0,65 kW; the volume of a hydrotank is 24 l. 8.3 ... 9.0 thousand rubles.

3. With portable ejector - Marina APM 100/25: head 20 m; performance 2.4 m3 / h; power 1,1 kW; the volume of a hydrotank is 25 l. 14.7 ... 19.1 thousand rubles.