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Holding Tank Pump Out Not Working
I have a manual pump out for my holding tank. Till recently it worked flawlessly. This weekend while sailing offshore, I tried to empty it and it pumped bit, then stopped. I thought perhaps it was having "gravity issues" with the port heel, so once we tacked I tried again. No dice. I could see the "stuff" trying to build suction, but ultimately not being able to get past the "out" fixture on the tank. I suspect the "pump diaphragm" since it is clearly not developing any pressure or sufficient suction (though it appears to be trying). Could there be anything else preventing the build-up of suction? Could the vent be causing this? Any other ideas, before I take the pump apart. Thanks.