Our Model BN153 nonautomatic Effluent Pump is designed to remove unwanted water in septic effluent applications. It is an ideal choice in high pressure or high flow applications. The professional-grade, 1/2 HP Model 153 is known for its dependability. The BN153 is a nonautomatic pump equipped with a single piggyback float switch. The piggyback float switch allows you to set the on and off point of the pump in the field. This is ideal in an application with a deep sump pit or pump tank. The Model 153’s switch case, motor housing, and pump housing are each constructed of cast iron. The corrosion resistant engineered plastic vortex impeller has a smooth surface allowing water and solids to pass freely through the pump. The pump’s identification tag, handle, and hardware are made of non-corrodible stainless steel. This attention to detail ensures that the Model 153 is able to withstand the most demanding applications.