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Discuss Hep pipe changed? ----- in the Plumbing Forum area at

  1. scott_d

    scott_d Plumber GSR Top Contributor!!

    has hep pipe changed?
    Got s length and the writing is black not red/pink
    Also there is no visible barrier layer?
  2. Jim Goodenough

    Jim Goodenough Plumber

    Maybe they just run out of red/pink ink Scott :rolleyes::D
    • Like Like x 1
  3. Cailean

    Cailean Plumber

    • Like Like x 1
  4. scott_d

    scott_d Plumber GSR Top Contributor!!

    • Like Like x 1
  5. Best

    Best Trusted Plumber

    Is it solid wall type non barrier?
    I wouldn’t use it on heating systems.
  6. YorkshireDave

    YorkshireDave Plumber Top Contributor!!

    Correct. Remember though all plastic by likes of polyplumb, Hep & JG lets air through. The barrier just lets less through. :rolleyes:
    • Like Like x 1
  7. scott_d

    scott_d Plumber GSR Top Contributor!!

    Yes, but it does say on the pipe suitable for h&c and central heating
  8. Best

    Best Trusted Plumber

    I still wouldn’t use it for heating systems. I had to remove some non barrier pipe (fitted by builders plumbers I think) that had blocked solid over entire length of pipe, which has to be something to do with air ingress of the pipe
  9. YorkshireDave

    YorkshireDave Plumber Top Contributor!!

    Define 'suitable'. The fact that it will 'work' is beyond dispute.

    However, whether it is 'best' for the system, when it is 'designed' to allow the ingress of THE central heating killer substance - oxygen, is another question entirely.

    Of course that was both a rhetorical & moot question. It can never be described as 'best' because it actively encourages system decay. The 'best' materials would add to system performance at best or not detract at worst. Ergo, MCLP or copper...

    Is it MLCP ? Memory is rubbish !!
    • Like Like x 1
    • Informative Informative x 1
    Last edited: Nov 8, 2018
  10. Chuck

    Chuck Well-Known Member

    Multi-Layered Composite Pipe = MLCP
    • Winner Winner x 1
  11. YorkshireDave

    YorkshireDave Plumber Top Contributor!!

    God if only I had a memory o_O

    Thanks Chuck ;)
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