Trupow 110V 1HP 3600GPH Submersible Utility Electric Sewage Drain Flood Clean/Dirty Water Transfer Sump Pump with Built in Automatic ON/OFF Switch

The pump as it came from the supplier, kept losing prime. I took the pump apart to determine the problem, and I found that the lower inlet deflector was the problem. I reassembled the pump without that deflector, and it starts on high level and shuts off at low level, without losing prime. Problem solved.