How to choose a reliable submersible pump for a well
The water supply of the dacha and country house is equipped with the help of wells or wells. A submersible pump for a well must meet certain requirements. Depending on the depth of rise, the required performance and pressure, a centrifugal or membrane (vibration) apparatus is selected. Which mechanism to apply in a particular case depends on the quality of the water and the financial capabilities of the owner. Of all the models, submersible pumps for a well are considered the best.
Read also about submersible well pumps!
Read about circulation pumps for heating!
How to calculate and choose the right device
- The depth of the well is determined by lowering the load on the cord to the bottom, it is checked against the passport data.
- The static level is determined by lowering the weight to the surface of the mirror after prolonged filling. In the morning or after a long absence of swing, the maximum filling of the chamber is determined.
- The difference in levels will give the depth of the water layer.
- Debit - filling of the chamber per unit of time. This value determines the pump performance, the possibility of long-term rocking without draining the submersible pump.
In addition, you will need to know to what distance or height the water will be supplied to determine the pressure. The continued use of the raised agent is important. The presence of an accumulation tank will make it possible to turn on a submersible pump for a well less often. During start-up, the equipment experiences increased loads. It is necessary to know the chemical composition and content of suspended matter in water.
Advantages and disadvantages of submersible pumps
The main difference between a well and a water well is in the depth of the water horizon and the size of the pipe vent. Wells are built with a larger chamber, and the pump diameter does not limit the choice. But in the well there may be a lower flow rate of water, the productivity of the apparatus is limited.
The water level in the well changes with the seasons. In order not to draw sand into the pump at a level of 15 cm to the bottom, you need to install a baffle plate made of metal along the section of the well, leaving a gap along the contour. Grains of sand will not rise under the sheet, and the water will always be clear.
Surface or submersible pumps for wells, which is better, is decided in specific conditions. More often choose a submersible device:
- the equipment is under water, does not require filling, ready to work at any time;
- the engine is water-cooled, does not overheat even after prolonged operation;
- the possibility of installing filters on the suction pipe protects the working mechanism from clogging;
- the use of automation ensures the supply of water as needed without human intervention;
- dry running interlocks will ensure the safety of the equipment.
The more modern the device is, the more it has an automatic circuit and safety interlocks, the more expensive it is. All submersible pumps for wells are more expensive than surface ones. This is justified, their service life is longer, their reliability is higher, and there is no need for a special room to work at zero temperature. However, the sealed housing cannot be repaired at home and the filters in the intake manifold must be replaced regularly.
Expert advice on choosing a pump for a well
For the manufacture of the pump body, materials are used that do not deteriorate from corrosion.High-quality plastic works in water no worse than stainless steel.
It is important to choose a submersible pump for a well with an automatic in order to minimize operation control. In this case, the device can be built into the water supply and heating circuit. The automation system will give a signal to turn on the make-up when the level or pressure in the system drops.
When installing the pump, it is important to know the flow of water into the receiving chamber of the well. It is dangerous to choose a level below the immersion of the pump, the device must always be under the bay, lowered at least 30 cm deep. Therefore, the best submersible pump for a well is the one that provides the required flow rate, head and is always under the head.
Choose a circulation or vibration pump, depending on the nature of the work. Usually for giving a submersible pump is chosen based on the operating conditions. An inexpensive membrane apparatus works periodically and only in summer. The operation of the unit is accompanied by noise, vibrations in contact with the walls of the mine can contribute to destruction. A layer of silt forms at the bottom of the well. If the price of a submersible pump for a well is not the main criterion, it is better to choose a circulation pump.
An incorrectly selected pump can lead to quicksand, raising the bottom, lowering the mirror. Depressurization leads to the appearance of an oil film. The consequences are removed difficultly and with great material costs.
Choosing the best submersible pump
The DAB Divertron 1000 pump operates according to the "set and forget" principle. One device replaces the storage tank, sold with built-in automation. The pump delivers water 45 meters horizontally, productivity 0.6-5.7 m3/hour. When the tap is opened, the pressure is regulated. The device pumps water with sand, can drain the pit, if necessary. The cost of the device is about 20 thousand rubles.
Switch on the equipment only through a voltage stabilizer!
The Grundfos 3-45 A pump also belongs to the premium class. With its help, the water supply of a country house is organized. The pump operates in automatic mode; an accumulator tank is required to raise water to the second floor.
JILEX pump The PROF 55/35 A water cannon costs half the price of famous brands, but it has good functionality. The pump can only be used to lift liquid. The water supply scheme is decided by a circulation pump. Dry running is excluded, a float switch is used.
The submersible pump for giving Vodoley-3 is the best solution. Low performance is offset by low cost - only 2 thousand. The submersible pump works for 2 hours, then it requires a rest of 15 minutes. To fill the tank for watering plants, it is used more often than other devices. Its advantage is its ultra-high reliability. Works without repair for up to 8 years.
Related article: water well pumps - selection rules!