Standing water in toilet waste pipe

Discussion in 'Plumbing and Central Heating' started by Richieduliban87, 19 May 2020.

  1. Richieduliban87

    Richieduliban87

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    I had a peek into my 110m toilet waste pipe under the floor boards from a boss entry. There is standing water inside (maybe about 20% capacity of the pipe). Is this normal or does it suggest incorrect gradient or blockage?
     
  2. Hugh Jaleak

    Hugh Jaleak

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    Not normal, and yes, would indicate a partial blockage or backfall. Suggest you investigate further, may be worth checking external runs are clear before doing anything else.
     
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  4. Richieduliban87

    Richieduliban87

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    The gradient of the pipe is pretty much bang on level. Would this be a problem?
     
  5. Hugh Jaleak

    Hugh Jaleak

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    Yes. Needs ideally a 1:40 fall, 1:100 at an absolute minimum.
     
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  7. Richieduliban87

    Richieduliban87

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    Thanks, got a plumber coming over
     
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