The Neptune laundry tray pump is used where the laundry tub sink / tray waste is below the sewer or street level waste line. It can be operated manually with a wall mounted switch. It can also be automated with the Neptune LT automation switch that automatically senses when water is present in the drain pipe and activates the pump till the line pressure shows water has been pumped out. The cast iron pump comes equipped with a brass impeller, and a 1/3 HP, 115V 60Hz motor. Instructions are included.