WPC well pump controller is specifically designed to transfer water from sources/wells to reservoirs/tanks. When there is ,a demand for water, pumps will start automatically and transfer water into reservoir. Built-in low water level logic stops pumps when source levels are low; pumps will automatically reset after a pre-set recovery time. Applied various methods can be utilized to control water levels in reservoirs: float switches, ultrasonic sensors and pressure switches or transducers. The WPC controller comes in two different configurations for simplex or duplex application.