The production of water from the well is carried out bydipping there a special pump. Submersible pumps for wells differ from self-priming pumps in that they have a multi-stage suction system. This fact causes their high cost and complex mechanism of work. The pump is a small cylinder that can flow huge amounts of water per hour. The principle of operation is that the engine, due to its high speed and high power, lifts the liquid from the depth to the surface.
All well pumps have documentation, inwhich indicates the permissible rate of movement of water, so the diameter of the well should correspond to the diameter of the cylinder of the downhole pump. The pump head can be determined using the simple formula H = H1 + H2 + H3 + 20%, where H is the required head, H1 is the distance from the earth's surface to the water level in the well, H2 is the distance from the earth's point to the water supply point in the house, H3 - water head pressure, and 20% - allowance for error and resistance in the pipe. Thus, the pressure created depends on the distance between the house and the well.
You can avoid such troubles in two ways.
Very often in suburban areas there is no possibilityinstall an electric generator or connect the central electricity, so the submersible electric pump will not work. Consider another type - a hand pump for a well. The principle of its operation is very simple, with some physical effort, you can get enough water. The demand for these well pumps is very low, and therefore the price for them is significantly lower than for a submersible pump. Although in some situations this is the only option to get water on your site.
A hand pump can extract water from a welldepth to 7 meters or a depth of 15-30 meters. The average volume of lifted water is 20-30 liters per minute from any depth. But the pump, which provides a water lift from 30 meters, will be much larger and heavier than a pump designed for a 7-meter depth of the well. A hand pump can be useful if a good electric pump can not be purchased.