How far will the switch allow the water to be pumped down?
This depends on several items i.e.: size of pump, size of impellor, is there a check valve on the discharge line?, however, Install the Oil Smart Switch so the bottom of the stainless steel rod (off level) is above the intake grates of the pump, two inches (2) or more, this varies by the size of the sump and water back flow, if installation is too low, the pump will suck air before the water is below the off sensor or the back flow of the plumbing water after pump shut down will cycle pump on and off.
