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smell from downstairs toilet.

  • 20-02-2017 1:09pm
    #1
    beer enigma
    Registered Users, Registered Users 2 Posts: 6,213 ✭✭✭


    Hi,

    We've suffered a nasty smell from the downstairs toilet pretty much from when it was installed a few years ago & having had plumbers out without success just wanted to run it through here as we're out of ideas.

    Its a standard toilet and we have a party sewer running under the back garden for 200m to where it joins the main sewer. The garden level is quite a bit lower than the house (7 steps from house to garden) so the builder put in a sewer 'chamber' for want of a better word - raised brick housing with a manhole cover on that the party sewer runs into on the garden side & the waste pipe runs into from the house side. Sorry not easy to explain.

    Anyway, I know from opening the hatch that the sewer isn't blocked and when I flush the loo, I can see the water running into the party sewer unobstructed.

    My problem is that the smell seems to be coming back up the waste pipe and through the water in the bowl. It's worse if the toilet lid is open and I can kill the smell if I pour a load of bleach down it.

    Plumbers have looked and said all is in order but cant explain where the smell is coming from. Is it possible for smell from the sewer to come back up and through the water ? one plumber suggested the waste pipe from the house wasn't at a sufficient angle, so whilst the water runs away, it allows the smell back up ?

    Any ideas or anything else I can check?


Comments

  • #2
    naughtysmurf
    Registered Users, Registered Users 2 Posts: 3,291 ✭✭✭naughtysmurf


    I'm not a plumber, do you have a wash hand basin in there too, if it's not being used often it could be the cause if the water in the trap is gone, the smell could be coming up through the sink waste, run the tap for a good while and see does that work or help


  • #3
    beer enigma
    Registered Users, Registered Users 2 Posts: 6,213 ✭✭✭beer enigma


    naughtysmurf wrote: »
    I'm not a plumber, do you have a wash hand basin in there too, if it's not being used often it could be the cause if the water in the trap is gone, the smell could be coming up through the sink waste, run the tap for a good while and see does that work or help

    Thanks but the washbasin is regularly used and the smell is definitely coming fro the bowl of the loo. Very noticeable if the lid is closed and you open it - its an acrid acidic smell.


  • #4
    Dormy
    Registered Users, Registered Users 2 Posts: 86 ✭✭Dormy


    Had this problem. Eventually had to install a vent to the sewer line nearer to the toilet than the existing vent. Seems to have worked.
    Bit of a pain to have to do it though.


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