Widespread pumps for automatic watering systems are the so-called water-lifting pumps, carrying water extraction from the source. There are two types of water-lifting pumps, surface pumps, which in turn are subdivided into self-priming and priming and submersible pumps, which, depending on the source of water, divided into soaking pits and wells. The simplest of terms installation and inexpensive cost option for automatic irrigation pump – a superficial self-priming pump, to lift water directly from the water source. But the operating conditions of the pump equipment identify certain restrictions – such a pump can be used in cases where the aquifers are relatively shallow from the surface (the rise of water from a depth of eight meters). If water is taken from a depth of more than eight meters, submersible pumps are used, which differ depending on the source of water for the system of automatic watering for Pit and borehole pumps. We note the manhole pumps high-performance engine with integrated cooling "jacket" and a relatively small cost.
When you turn on pumps form a strong stream of water, which contributes to additional cooling of the engine. Water withdrawals for irrigation in an automatic manhole pumps is through the base mesh, which prevents the penetration of the major pump of the abrasive particles. The use of narrow artesian wells in the ground and determined the shape and size of the downhole pump. Externally, the structure of the borehole pumps are similar to an elongated cylinder, usually of small diameter. Water is drawn into the pump through the floating filter connected to a flexible hose with special nozzle. If the water is polluted and contains much sand, the floating filter, located just below the water level, prevent small particles from the water surface, which significantly extend the efficiency of the pump and watering equipment. Also, to avoid breakdowns of pumping equipment is advisable to use the pump with built-in automation, breaking pump during idling and the thus preventing the exit of the pump system.