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How to stop this joint leaking?

Discussion in 'Plumbing and Central Heating' started by StephenStephen, 21 Jun 2018.

  1. StephenStephen

    StephenStephen

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    Hi all, appreciate your help on this,

    I've a large new water tank in the garden.
    It has a 1" brass (female) outlet

    I screwed in a brass joint
    it leaked

    I unscrewed it, put ptfe around the thread, screwed it up again
    it still leaks

    What am I doing wrong?
    DSCN4480.jpg DSCN4481.jpg DSCN4482.jpg DSCN4483.jpg
     
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  3. gasmanstu72

    gasmanstu72

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  4. just pumps

    just pumps

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    Whilst you`re shopping buy a jubilee clip to go over the hose pipe (y)
     
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  5. Nige F

    Nige F

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    Is there a backnut inside the plastic cistern ? I think I see a 3/4 x 1 inch brass hex bush - not a tank connector:unsure:
     
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  6. StephenStephen

    StephenStephen

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    Excuse my ignorance, but by backnut do you mean a nut on the inside of the tank screwed onto the male fitting going into the tank? If so, then no there isn't one.

    Should I be using a different fitting to screw into the tank's brass 1" female fitting, or should I have put a washer on it? I can't see how I'd put a backnut on it (if I understand correctly what that means) - the tank opening is too small to get in and is a metre away from the outlet. I needed to drill through the plastic behind the outlet, in order for the water to come out (if you see what I mean)
     
  7. Nige F

    Nige F

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    You are correct about a backnut. I know what you mean about the tank opening. First try what gasmanstu said.
     
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