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Cecilt's avatar
Cecilt
Explorer
Jun 05, 2015

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 you know what that pours out. It is not 2 gallons which is what I add to the black tank after dumping but enough that it is disgusting. Any idea why residual stuff is coming out 1 week later. Yes, all levers are closed after last trip tks.

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  • BB_TX's avatar
    BB_TX
    Nomad
    Jun 05, 2015
    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.
  • Dakota98's avatar
    Dakota98
    Explorer
    Jun 05, 2015
    Sounds as though you are dumping & not getting everything out. Try flushing the tank afterwards with a wand & repeat if needed, & yes the valve is not sealing properly.
  • filthy_beast's avatar
    filthy_beast
    Explorer
    Jun 05, 2015
    I always get a little liquid out when dumping. It could just be water left int he pipe from the dump that finally works its way down to the low point. Otherwise you could have some debris in the valve from the black tank. I have one of these attached to the dump connection. Dump Valve

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