The 1/2 HP Model BN98 nonautomatic Effluent Pump with a variable level float switch is designed to remove groundwater from sump or septic system applications. This high pressure and high flow pump will provide the dependability expected from a Zoeller pump. Backed by a 3-year warranty, every pump is submerged in water and tested to its published performance curve, ensuring it meets your expectations and delivers peace of mind right-out-of-the-box.