Pump Start Relays
A pump start relay is an electrical device that allows your irrigation timer to communicate with the pump. This device is imperative when you are using a pump to supply water to your irrigation system. Pumps are built to use normal house currents; the relay changes the irrigation timer to normal household voltage. Pump start relays must be mounted at a minimum of 15 feet from the timer and pump to avoid electrical interferences that cause malfunctions.