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duggram's avatar
duggram
Explorer
Jul 12, 2018

Toilet won't flush

Yesterday I did my weekly tank drain (I full time) and both black and gray made sounds and felt like they flushed. This morning my toilet is full of sewer water. I turned the water off to my trailer so I could flush without adding water to the problem. I then gently stuck a broom handle down the hole and met a solid surface.

Does anyone have a suggestion on where to start to fix this?
  • mobilefleet's avatar
    mobilefleet
    Explorer
    Jul 12, 2018
    go up on the roof and check inside the black tank vent stack.. it's prob clogged with an insect or bird nest, or there's a forign object in your tank blocking the outlet drain, like a piece of wood from the factory (seen it before) or a feminine product (those are no-no's in an rv toilet).
  • Old-Biscuit's avatar
    Old-Biscuit
    Explorer III
    Jul 12, 2018
    Open black tank dump valve ...then have someone flush toilet/hold toilet open
    See if black tank drains more out of it.....clogged tank vent/toilet open provides venting
  • Straylight's avatar
    Straylight
    Explorer
    Jul 12, 2018
    What kind of toilet do you have? Do the tanks seem correctly aligned when you look under the rig?
  • DutchmenSport's avatar
    DutchmenSport
    Explorer
    Jul 12, 2018
    How far down did the broom handle go; just inches after the hole, or a foot or two before bumping into something solid?

    Another question? Do you ever flush your black tank out after dumping?

    Just trying to figure out where the blockage is actually occurring?

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