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Soil pipe INSIDE extension (first fix)

Discussion in 'Plumbing and Central Heating' started by Minime46, 21 Dec 2020.

  1. Minime46

    Minime46

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    Hi all

    We we have had a double story extension. downstairs is finished. Up stairs has no, ceiling etc. I would like to do some of the work myself. There is the old external waste pipe in the extension though...

    Are there caps or filters or anything you can add to these or does it need to be run to an outside wall? Its currently in the middle of the old external wall.

    Any advice would be huge. The soil pipe is next to where the new ensuit will be.
     
  2. tel765

    tel765

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    Kind of late in the day to be thinking of this issue?

    Presuming the S&VP is still active?
    Perhaps post some pics of the S&VP roof projection
    and any waste or original WC connections,
    and an en-suite lay out diagram -
    and the outside walls?
     
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  4. Hugh Jaleak

    Hugh Jaleak

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    If the pipe is 'old' then I'd seriously think about renewing it, before you box it in and decorate/furnish the rooms its located in. If it fails and/or starts leaking at a later date, it'll be a far bigger job to replace it!
     
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  5. Minime46

    Minime46

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    Thank you. It is new. As it is currently waste pipe for only the ensuit.

    The plans say box it in... so wasn't sure if they would just put one of those air valves on the end of it?

    It wouldn't be a huge job to run it along and out of the back wall. I just didn't know if it is possible to extend it into the loft and put the valve on the top? If not we will just run it out of the side wall i guess
     
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  7. Hugh Jaleak

    Hugh Jaleak

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    Take the easiest and shortest route. As long as the AAV is above the spillover height of the highest appliance, (usually the basin), and you have a vent elsewhere on the system, then all is ok.
     
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