PAfarm, trash pumps don't play nicely with muck or silt removal. They do much better with small pebbles or rocks. The issue I've had is the pump housing gets ground down by the silt behind the cast iron impeller, and although it will continue to pump, the GPH numbers drop, and getting any lift while priming the pump can be tricky. I've had my 2" and 3" pumps for a while, and I'm already on my 3rd housing on the 3" pump. If you can get it to work, the boat venturi option would be much better.
