seems to work well after getting the bypass and pressure switch adjusted. The pressure switch seems to chatter the motor(cut in and out rapidly) as it reaches the shutoff pressure. I am using this to pump water from a tank into a pressure tank and drip irrigation system. I have the bypass closed completely since it is filling a pressure tank and then can shut off for 15 minutes before needing to pump again. it seems to put out the advertised flow rate. my only complaint so far is the threaded fittings don't seem to be true pipe thread as they wont tighten up without bottoming out so you will need to use alot of thread tape. Also the strainer it comes with works well but filters from the inside out so you cant see when its plugging up.