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Anyone help with what this pipe is as what it does?

Discussion in 'Plumbing and Central Heating' started by TJR1, 3 Oct 2021.

  1. TJR1

    TJR1

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    I’m struggling to work out what this pipe is? I have the usual pipes, trap and the pipe going outside. This thinner pipe which also goes outside and appears to be leaking. It’s a new build house (7 years old). I want to try to explain to a plumber before I get them out and incur a call out charge. Many thanks! 7481233E-8C78-48C5-8137-C5475767E6D8.jpeg
     

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  3. johnny2007

    johnny2007

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    Do you have a boiler on the other side of the wall?
    Or tanks in the loft?
    It's an overflow pipe.
     
  4. TJR1

    TJR1

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    Thank you for the reply, the boiler is further along the wall, 2/3 cupboards away. It is in the other cupboard with an open door in the attached photo.
     

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  5. terryplumb

    terryplumb

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    Possibly the condensate pipework from the boiler. I doubt it goes outside,can you see it externally ??
     
  6. TJR1

    TJR1

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    Why did I not think of that, no there’s only the normal waste pipe outside. I do have this pipe under the boiler rather than the sink which goes into the wall which I’ve had British Gas out too before as that was leaving water pools on the shelf of another cupboard. 9EE0195E-E26F-4C95-9F2B-06E5C2862A70.jpeg
     
  7. terryplumb

    terryplumb

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    There are two pipes in pic ,both going into wall, the white plastic is the condensate ,the right hand one is pressure relief. On the other side of the wall..external wall ?..is there only one pipe ( the metal one)
     
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  9. CBW

    CBW

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    Seen plenty of new builds with (boiler) condensate pipes connected up this way - this is what I think it is.
     
    Last edited: 3 Oct 2021
  10. TJR1

    TJR1

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    Yes just one going outside to the grid/drain. It has only happened now I think about it since I put the heating on at the end of last week!
     
  11. TJR1

    TJR1

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    Thanks. Least I know what I’m saying is leaking now when I ring someone to have a look.
     
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  12. terryplumb

    terryplumb

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    Definitely the condensate pipework under the sink.
     
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  13. TJR1

    TJR1

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    Cheers thanks for your help!
     
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