It is used to supply water from barrels for irrigation and pump water from the pond. Really normally delivers 20 meters if from ground level. From the well, the pressure is much less. The pressure allows you to connect a circular sprinkler - a sprinkler. Not critical if the water is slightly contaminated. A trouble-free simple gadget - threw it into a barrel, turned it on. When the water runs out, the pump itself turns off, resulting in the activation of the float. In work it is simple and trouble-free.