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sidewayzz's avatar
sidewayzz
Explorer
Oct 08, 2017

Sewer smell in bathroom

I have a sewer smell in the bathroom. Toilet is holding water just fine. We have cleaned the black tank and grey tanks several times. Vent being closed or open doesn't seem to change anything. What if anything can I do. A little background the camper sat for 2 years before I got it. Thanks
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  • Parrothead_Mike's avatar
    Parrothead_Mike
    Explorer
    Oct 08, 2017
    How about checking the vent cap on the roof? If you remove the cap on the roof you may find that bees or something is blocking the vent with a nest.
  • Old-Biscuit's avatar
    Old-Biscuit
    Explorer III
    Oct 08, 2017
    Check inside bathroom sink cabinet for 'Air Admittance Valve'
    Will be on stub pipe just downstream of 'P' trap. Allows air into drain line when dumping waste tank so 'P' traps do not get sucked dry.
    Don't close...STINK comes back

    Available hardware stores

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