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Discuss Help designing an offset soil pipe vent in the Fittings & Pipes area at UKPlumbersForums.co.uk.

  1. Rypat

    Rypat New Member

    hello,
    I am designing a soil pipe for a timber bungalow that I am building where the soil vent pipe needs to be offset on a gable wall away from the main soil pipe. I have put in a link to a drawing I have made with my idea. Your advice is welcomed

    Dropbox - plumbing layout (1).pdf

    Thanks
     
  2. Last Plumber

    Last Plumber Plumber GSR

    This might be a daft reply but, Two 45 deg bends and a piece between?
    If it's the travel length you want to calculate, then you need the two centres times 1.414 less the legs. (for 45 deg).
    I don't fully understand the problem so if I have not answered it, please let me know
     
    • Like Like x 1
    Last edited: Dec 13, 2017
  3. Rypat

    Rypat New Member

    that’s what I was thinking. Do I put the Y branch for the soil vent so that the toilet feeds into the Y or the vent pipe feeds into the Y. Can you have any horizontal sections in the air vent pipe?
     
  4. Rypat

    Rypat New Member

    In case the Dropbox doesn’t work...
     

    Attached Files:

  5. Last Plumber

    Last Plumber Plumber GSR

    It's just a vent isn't it?
    As long as it goes past any opening into the building by 3 foot it's fine.

    If I understand what you're asking and you mean a junction with the WC entering the branch and the vent off the top, yes.
     
  6. Rypat

    Rypat New Member

    Yes. I think the drawing shows it more clearly than I can explain it
     
  7. Last Plumber

    Last Plumber Plumber GSR

    I see what you mean. Just studied pic a bit closer.
    Any other vents ?
    Why take it around the house? is there a reason why it can't come up where the WC Soil exits the building ?
     
  8. Rypat

    Rypat New Member

    No other vents planned. I wanted to keep the stack pipe out of view as that gable is out of sight. Also keeps pipe from going through the roof or round the roof with an offset
     
  9. Last Plumber

    Last Plumber Plumber GSR

    What does it say on the drawing in the corner?
    Does it say pumping station?
    Is it not main sewer?
     
  10. Rypat

    Rypat New Member

    It’s going to a sewage pumping station up to our mains drain
     
  11. rpm

    rpm Trusted Plumber Top Contributor!!

    Should be ok however check the MI`s or call them with the measurements.
     
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