DIY installation and repair of automatic water supply stations

In order to uninterruptedly supply water to a summer house or cottage, a high-quality source of water supply, a pipeline and an automatic water supply station are needed. Compact, easy-to-use stations are widely used in suburban engineering networks. Homeowners who are not ready to pay a lot of money for a finished factory installation will learn from our material: how and from which to assemble an automatic water supply station with your own hands.

Design and principle of operation of the water supply station

The task of an automatic water supply pumping station is to supply water and maintain the necessary pressure in the pipes. To ensure all household needs, the system should contain:

• accumulator - accumulates water at a given pressure, equalizes pressure drops;
• self priming pump;
• check valve - prevents leakage of water from the pipes during idle time of the pump;
• dry run sensor - Turns off the power to the pump when there is no water in the pipes;
• pressure switch and pressure gauge. A pressure switch supplies and stops power to the pump. The manometer shows the pressure in the system; it is indispensable during the setup or repair of an automatic water supply station;
• pressure reducer - stabilizes the maximum pressure in the consumer network;
• control module or ROM - a starting protector, as a rule, is included in the package of the pump.

The principle of operation of the pumping station for automatic water supply is simple: the water is sucked in by the pump and supplied to the accumulator. The tank holds a certain amount of water, the pressure of which is set using a relay. When the pump is standing, water for use is supplied from the accumulator tank. As the water level decreases, the pressure drops, at the set point the pump starts. According to this cycle, an automatic water supply station with a hydraulic accumulator operates.

The capabilities of an automatic water supply station depend on the capacity of the accumulator tank. With a small volume, the pump will start after each dishwashing, which will negatively affect the resource of its work. It is estimated that one tenant of a private house spends about 250 liters of water per day.

Residents of the house can use water during a power outage within the tank volume. The pressure in the pipes will be kept in the range from 1.5 to 3 atmospheres, sufficient for any domestic needs.

Selection and preparation of the installation site of the water supply station

The main disadvantage of automatic water pumping stations is their noisy operation. And although many manufacturers are working on its elimination, we recommend installing and installing an automatic water supply system away from residential premises and closer to the source of water intake.

For smooth operation, you need a rigid base and good fasteners, which is easiest to provide on a concrete site. A possible alternative to the base for a do-it-yourself automatic water supply station is a wooden base. For the construction you will need:

• boards 50 mm thick;
• bar 100x150 mm;
• nails
• clay, sand.

Work order:

1. Cut 2 pieces of timber 600 mm longer than the width of the station, treat them with an antiseptic.
2. We dig ditches under the bars, stack them, check the horizontal level.
3. Tamp the ground around the bars with sand and clay. The bars must not protrude more than 5 cm above the ground.
4. On the bars we fill a shield from boards previously treated with an antiseptic.
5. Before installing and attaching an automatic water supply station with a hydraulic accumulator, once again check the horizontal level!

Install the station using 1 cm rubber gaskets. Do not use gaskets that are too thick to reduce stiffness and cause vibration.

Installation and connection of the station

The procedure and connection diagram of the pumping station for automatic water supply are the same for any source of water intake:

1. We start with the assembly of the ejector. This is a cast iron construction with several sockets for fasteners.
2. We fix the coarse filter to the lower outlet.
3. To the upper plastic bell we fasten the flare assembled from 2 parts. We measure the necessary length.
4. A metal sleeve is attached to the bell of the drive as an adapter to the polypropylene pipe. Joints are carefully sealed.
5. In pre-prepared ditches, water pipes are laid. For turns, leave a small margin in length.
6. For the casing, an elbow with a suitable bending radius is usually selected.
7. The ejector is attached to the pipe on the coupling connection.
8. The second end of the pipe is passed through the elbow at a right angle, the structure foams and only after that it is lowered. Now we fasten the pipe to the external highway with an angular adapter.
9. The assembled ejector is introduced into the source of water intake to the depth of the casing, which we plan in advance.
10. We fasten the ejector and casing flange fastenings with metallic tape.

An important point in observing the connection diagram of the pumping station for automatic water supply is water quality. In well or well water, there are always some inclusions that are dangerous to the mechanisms. Without filtration, grains of sand and particles of soil will gradually accumulate in the accumulator, leading to breakage and repair of the most expensive element of an automatic water supply station - a pump. Therefore, a filter is installed in front of the pump. Vibration pumps are more vulnerable to mechanical impurities.

It must be remembered that a dirty filter creates additional resistance to the flow of water, reduces pressure and increases the load on the engine.

The most common mistakes during installation and installation of an automatic water supply system:

• During the laying of the pipeline, the pipes are cut without reserve for the thickness of the foundation and turns.
• The threaded nuts are loose. If you tighten the connections manually, leaks will be detected during operation.
• The pressure in the accumulator must not fall below 1.2 atmospheres. It should be lifted by a car pump or compressor.

Water station setup

The goal of setting up an automatic water supply station with your own hands is to obtain the optimal pressure:

1. We set the lower pressure threshold in the accumulator at around 1.3 atmospheres. This is done by a compressor or car pump in the absence of pressure in the system.
2. We set the threshold of the dry running relay to the maximum mark.
3. Pressure reducer is configured according to its instructions. To set the highest pressure mark on the gearbox there is a handle or screw. The gearbox threshold should be 0.5 atmospheres higher than the relay threshold.

The factory pump station is much easier to set up. Through the provided hole in the casing, pour about 2 liters of water and carefully monitor the pressure. The pump should turn on at 1.6 -1.8 atmospheres, and turn off at 2.6 - 3 atmospheres.

We remove the cover from the relay and turn the screw “DR” in the direction “+” - to increase or in the direction “-” - to lower the shutdown pressure. The switching pressure is adjusted with screw “P”.

Installation and installation of a factory automatic water supply system can be carried out by masters from a service center.If necessary, they will repair an automatic water supply station.

Video on how to independently provide a house with water: