The unit I have is a Shurflo Pump, same one as Cabala's sells for 85 bucks. I did get it with my boat when I bought it new and I don't know if Alumaweld put it in at the factory or if Three Rivers did. It looks like a pretty well made unit though. I'm thinking it has to be some thing inside of the pump like a seal or something? As I said, the motor turns on just like it always has just no water comes out of the hose, frown