Water well pump systems deliver a more consistent volume of water over the range of pressure switch settings than a jet pump. Using up to 70% less electrical power than jet pump operation for the same amount of water. The pumps and motors design and manufactured allows for trouble-free long life. Motors are water cooled and can be installed in any position要ertical or horizontal. 3 Wire models require an above-ground control box between pressure switch and pump motor. 2- Wire models have "in the motor" controls and wire directly to water system pressure switch or power supply. Pumps ship assembled and include pump, motor, and built-in.