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leaking from flexihose where it screws onto brass shank of fluidmaster 400uk

Discussion in 'Plumbing and Central Heating' started by PHIL269, 4 Mar 2017.

  1. PHIL269

    PHIL269

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    just replaced valve but it is leaking from flexihose nut where it screws onto brass shank of bottom fill fluidmaster 400uk valve
    should i of used a sealant tried tightening but not stopping and not cross threaded as put on carefully
    please help
    thanks
     
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  3. Is there either a fibre or rubber washer in the female end of the flexi?

    (sealant not required)
     
  4. PHIL269

    PHIL269

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    yes as it was before
     
  5. Is the washer rubber (usually captive) or fibre?

    If you are re-using the flexi then the washer may be distorted and not sealing against the new float valve tail.
     
  6. PHIL269

    PHIL269

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    its the existing one it is rubber and is clean should i keep tightening or undo and try some fairy liquid on washer
     
  7. vinn

    vinn

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    If this is the original flexi then replace it - as a matter of course, we replace all flexi's - without exception.
    Clean any "sealant" or tape off the fitting threads, & dont use any yourself.
    Dont use "fairy liquid" either - go to dry clean threads.
    Make sure that the flexi is not overextended and straining or far too long and full of curls.
    You should be able to easily make hand tight connections at both ends before a final nip up with a tool.

    Make certain that its not the fitting weeping at the backnut?
     
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