Liberty Pumps LE51A is a 115V 1/2HP Automatic/Manual Submersible Sewage/Effluent with 10ft quick-disconnect power cord. This Liberty Pump a mercury-free fisheye float switch with series -LRB- piggyback -RRB- plug for non-automatic bypass operation. The switch turn-on level is approximately '' to 16 '' and turn-off level is approximately 6 '' supra the backside of the basin. else pumping differentials may be by tethering the switch cord to the discharge pipe. For non-automatic operation, or in the event of switch failure, the pump cord can be separate and plugged into the physical phenomenon outlet, directly the switch. CAUTION not let the pump run dry.Liberty Pumps LE51A have 25 ' Shut-off Head, 2 '' FNPT Discharge and a 2-vane semi-open impeller resourceful of passing a 2 '' ball-shaped solid.The heavy-duty built Liberty Pumps LE40-series is the ideal choice for residential sewage applications. The pump motor is oil filled, thermally and quick-disconnect design of the power cord allows replacement of cord in seconds without breaking seals to motor.