Sewer smell in only 1 of 3 bathrooms

Discussion in 'Getting Started FAQ' started by prewor, May 15, 2018.

  1. prewor

    prewor New Member

    Hi. I have 3 bathrooms in all of which the toilet sink and shower are connected to a vent. I am getting sewer smells in only one bathroom and only from the shower. The problem bathroom is the lowest of the three bathrooms connected to the vent. Why do I only get a smell in this one shower and how can I fix it? Thanks
  2. Astramax

    Astramax Well-Known Member

    Check your manhole first for blockages.
  3. Pollowick

    Pollowick Well-Known Member

    What sort of vent is fitted? Is it blocked? or if an AAV, is it operational?

    Is the water seal being pulled out? What trap is fitted to the shower? Can you gain access and see if it is full?
  4. Isitreally

    Isitreally Well-Known Member

    Do you know for sure that the shower that smells has a u-bend or some other form of trap on it.
  5. big all

    big all Screwfix Select

    if theres a toilet or a sink in there check the" u"bends has water in it
    if you dont use them for a while they may dry out
  6. prewor

    prewor New Member

    I have run water in the sink and shower to ensure the traps are full but there is still a smell in the shower. The smell is coming from the shower as when I cover the plug hhole with a plastic disc the smell goes away. I don't know for sure that a trap was fitted when the shower was refurbished and it is now all tiled in so inaccessible. The vent runs up outside the house - I'm not a plumber but to me it's just a wide pipe and not an AAV.
  7. Isitreally

    Isitreally Well-Known Member

    If there's a trap fitted and its not dry, it won't smell, if no trap it will, you covering it over and the smell going does suggest that they may not be a trap fitted.
  8. masterdiy

    masterdiy Active Member

    prewor, you say you had a shower that was refurbished?
    By who?
    If it was reasonably recent, get back in touch with the guy, & ask if your shower has a trap.
    If he doesn't know, ask him to come back & check.

    Just a thought.

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