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Soil pipe & flexible ducting leak

Discussion in 'Plumbing and Central Heating' started by houstonwehaveaproblem, 11 May 2019.

  1. houstonwehaveaproblem

    houstonwehaveaproblem

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    Hi all

    There is flexible ducting between the soil pipe & the soil pipe outlet where it goes through the wall. I have noticed a small damp patch on the ceiling so took a look in the void where the pipe exits through the wall. It seem there is a slight drip where the flexible ducting has been fitted to the plastic pipe.

    As far as i can tell this is from condensation?

    Is there any way to get round this? I can access where the soil pipe exits through the wall to outside but cant get to the other end of the spoil pipe.
     
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  3. Assuming that you're describing a connection to a WC pan then, if there's enough moisture to produce a damp patch on a ceiling, it sounds more likely to be a leak than condensation.

    I'm not clear from your description but it sounds like you have a flexible pan connector joining the soil stack?

    A photo might be helpful.
     
  4. houstonwehaveaproblem

    houstonwehaveaproblem

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    Will try and get a pic tomorrow.

    Its basically a length of flexible ducting connecting the plastic soil pipe (horizontal) to the piece of plastic soil pipe where it vents through the wall
     
  5. Toilet > rigid waste pipe > flexible pipe > soil stack ?
     
  6. houstonwehaveaproblem

    houstonwehaveaproblem

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    147C57F7-F392-4205-ADE1-D55F441858E0.jpeg
     
  7. Look forward to the photo!
     
    • Like Like x 1
  8. 2F5119DA-6AE5-4072-B103-C44BB78AC975.jpeg F73E41A8-EA8A-42D8-9D30-D7951925F6F3.jpeg

    What colour is the flexible piping?

    I see it the white or black as shown?
     
  9. houstonwehaveaproblem

    houstonwehaveaproblem

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    14D665FC-4AF0-4804-9720-E57B64FB734D.jpeg Sorry i should of been clearer, its more like this...
     
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  11. Just to be clear - this pipework is connecting a toilet to the external stack?

    The photo you have posted is extractor flexible ducting.

    Is this the type of thing you're looking at?
    upload_2019-5-11_22-36-24.jpeg
     
  12. houstonwehaveaproblem

    houstonwehaveaproblem

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    No its def extractor ducting thats been used to bridge the soil stack
     
  13. I'm sorry to be dense but what is this pipework connecting to the soil stack?
     
  14. houstonwehaveaproblem

    houstonwehaveaproblem

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    I dont understand the question
     
  15. dilalio

    dilalio

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    Need to see the photos but sounds like a bodged up connection to an exterior SVP (soil vent pipe). If the flexible ducting has been used to come straight off the top of the highest branch to the wet soil pipe to wc then it's a bodge.
     
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  16. I've come to the same conclusion. Possibly SVP has been altered/extended in which case as @dilalio has already said, it's a bodge and the leak could be either condensation or rainwater.

    A photo wold be very helpful.
     
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  17. As stated a photo would be best for us to inform you of what to do next. If you do have flexible extractor fan ducting used in a soil pipe then it must have been a very temporary repair carried out by a non-trade.
     
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