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Bottle trap wont seal at basin level

Discussion in 'Plumbing and Central Heating' started by MrPie, 29 Apr 2020.

  1. MrPie

    MrPie

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    Hi all, have a little problem with installing a new bottle trap as the old one was leaking all over the place. Right now i'm having an issue with the telescopic pipe sealing at the top end with the washer and nut tightened as far as it will go (about 2 threads) and the pipe has a lot of play even with all that done. Kind of stumped on what to do. My sink is a circular glass one. Took a picture of the problem area

    [​IMG]

    Thanks
     
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  3. terryplumb

    terryplumb

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    I think your wastes thread ,and your traps thread are not compatible. Did you source the waste and trap from different sources ?
     
  4. MrPie

    MrPie

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    Waste came with the sink back in the day so yes, i've tried two kits so far, floplast and now the alpine and both have issues with sealing at the top.

    For reference on the old vs new [​IMG]
     
    Last edited: 29 Apr 2020
  5. terryplumb

    terryplumb

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    I think your waste is a European thread , metric probably. UK traps are BSP ( British imperial threads). Change the waste fitting for a UK waste. Or search for a conversion coupler to go in between.
    Can you show a pic of the waste thread ,without the trap connected ?
     
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  6. just pumps

    just pumps

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    Almost reached the point where we need to carry an euro converter with us now.
     
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  7. Johnny Allround

    Johnny Allround

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    Your trap slides inside the outlet, your rubber seal and nut sit on the outlet to receive the trap ,should be straight forward.
     
  8. CBW

    CBW

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  9. MrPie

    MrPie

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    As you can see it's a lot of thread but i can get about 2-3 turns and it'll tighten up.

    Am i looking for something like this then? https://www.screwfix.com/p/mcalpine-t12a-f-1-bsp-eu-uk-coupler-white-40mm-x-40mm/1358v
    [​IMG]
     
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  11. terryplumb

    terryplumb

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    As said earlier ,waste is euro thread.
     
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  12. MrPie

    MrPie

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    Alright, i'll get a conversion and see if that sorts it, will report back tomorrow. Cheers
     
  13. terryplumb

    terryplumb

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    Macalpine S12A - F ,is for basin waste conversions...but it's white plastic !!
    Internet search will likely turn up , a chrome version.
     
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  14. Johnny Allround

    Johnny Allround

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    We love McAlpine products, they always have a solution.
     
  15. just pumps

    just pumps

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  16. MrPie

    MrPie

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  17. JimCrow

    JimCrow

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    Have you tried the old nut on the new trap?.
     
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