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Metal to plastic thread weeping at water filter

Discussion in 'Plumbing and Central Heating' started by sean oc, 3 Aug 2020.

  1. sean oc

    sean oc

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    Hi

    Didn't realise an old water filter was hidden until room was ripped out. The old filter was not nice to say the least

    Bought a kit like screwfix one and the adapters which were recommended .

    Its all be compression fitted by previous owner as he was a handy man so I decided to get near enough same style filter to swap

    Stuck on the 3/4" to 15mm adapters but they weep as its copper to a plastic thread which then screws into the filter.

    I have fitted alot of Ppte tape and the in side okay but the out side weeps. Is there something better to use that ptfe

    Thanks
     

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  3. denso13

    denso13

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    Loctite 55 is a good alternative.

    And remove all of the PTFE from the threads of the compression fittings. It is not required and looks like a bodge.
     
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  4. just pumps

    just pumps

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    Too much ptfe tape with too much force can cause the plastic to split and leak so don`t go all gorilla on it. If you really struggle then a light smear of lsx on the tape will help.
     
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