Installed new impeller in sea pump, used a fake lake to check installation. Not getting any water out of exhaust, pump is dry. Tried priming or filling intake line with water, still will not pump. I have had several boat shops look at the pump and tell me it’s good, but it doesn’t work at all. Anyone have anything like this going on, ever? It’s the brass sea pump, it’s definately worn on the from and back of the housing.