Waste coming out when opening flush top
2 weeks in a row now after dumping the black, gray and then 2nd gray tank the weekend prior when we show up at the next campground a week later and I open the lid to the dump I am getting black tank ...
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I would guess leaking valve, or valve just not closing completely. Mine typically does not have any water at all behind the cap, and never more than a few drops which is probably what had not completely drained down before I put the cap on.
