Join Date: Feb 2010
Location: Narragansett Bay
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Re: Clearing the Holding Tank Vent Hose
Like I said, while drawing a vacuum with the pump out, spray the water. This not only forces the water in (pressure of the hose) but it should be drawing air in through the vent (or trying to anyway). My vent is on the side of my hull as well and it fixed my clog like a champ.
I wasn't disputing your advice. But you have made me think of whether the input from the hose would match the suction from the pump out. Probably not. In this case, I suspect a vacuum might be created in the tank.
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In the harsh marine environment, something is always in need of repair. Margaritas fix everything.