Zoeller 161-0023 Model J161 High Head Effluent Pump 0.5 HP 200V 3PH 25' Cord NonautomaticZoeller Model J161 High Head Effluent Pump Description Our Model J161 nonautomatic Effluent Pump is designed to remove effluent or ground water in septic or effluent applications. The 1 2 HP J161 is a time tested and reliable effluent pump. The J161 is a nonautomatic pump requiring a piggyback float switch or control panel for operation. Either option allows you to set the on and off point of the pump in the field. This is ideal in an application with