Gdavid
Guru
I just spent 5 days onboard a sailboat with a holding tank configuration that struck me as odd. The boat is part of a membership club and on loan to the school I teach at so it isn't mine to worry about or change. Rather than a Y valve, the head output goes to a T fitting with a seacock on one side and a holding tank on the other. The holding tank is about 1.5' higher than the seat of the head so I guess the waste goes through the seacock as long as it is open, but the hoses would always be full of waste below the height of the tank when the seacock is closed. (It is always left closed due to the boat's location) This configuration seems like a really dumb idea. It appeared to be the stock configuration from a reputable builder. Has anyone else seen anything like this?
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