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New hot water cylinder question - hemp or ptfe/compound.....

Discussion in 'Plumbing and Central Heating' started by poolebybirth, 31 Aug 2010.

  1. poolebybirth

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    FItting a new hot eater cylinder..... woudl you use hemp or ptfe tape and or jointing compound? I know hemp is against water regs though :( - how many turns of ptfe tape is going to be water tight? I usualyl use hawk white (normal not potable, so again against water regs) - anyoen used lsx as jointing compound? any good?
     
  2. kevplumb

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    12 turns of tape monkeyhanger

    i was born on the manor :LOL:
     
  3. poolebybirth

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    ok cheers kev - 12 turns and hawky white or lsx? i have heard lsx is very good????
     
  4. kevplumb

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    12 turns and nix bonny lad ;)
     
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  5. poolebybirth

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    cheers Kev you're a star :)

    Got another little thing I'd like to ask your advice on mate..... toilet, siphon diaphragm replaced, all ok, but slight drip form wing nuts ..... doughnut letting by..... anything i can do to stop the drip? as can't get exact doughnut to fit :(
     
  6. kevplumb

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    first tighten the big nut

    a spot of sealer on the donut wont hurt

    dry it and the surface first ;)
     
  7. poolebybirth

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    chers kev :)

    tightened the siphon nut

    what sealer on the doughnut? normal siliconer? or lsx?

    dried both doughnut and pan where it sits :)
     
  8. kevplumb

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    if your using silicone get some dow corning
    lsx why not ;)
     
  9. ChrisR

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    Loctite 55 - string ptfe stuff, has won a lot of friends. It's MUCH less likely to leak if it's backed off, than tape.
    It takes a little practice to know how much to put on but I love the stuff.
    Don't be taken in by cheaper lookalikes which are more like narrow thick PTFE. I thnk Todays Tools do one of those - avoid!

    It's also good for long screws (- that's a plumbing connection, not a 4 inch 12...)
     
  10. poolebybirth

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    kev - what do you mean "dow corning"?!!!


    chrisR - I have used loctite tape before worked ok - do you mean use it on te doughnut or on the wingnut? what do you mean when you say "backed off" - sorry fi I sound dumb today :)
     
  11. kevplumb

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    dow corning trade name ;)

    when you go to the plumbcentre in oxford street ask for keith ;)

    if memory serves :D
     
  12. Threadjacker

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