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Thread: PEX

  1. #1
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    Default PEX

    Does anyone know if PEX for potable water needs to be color specific. Basically, the plumber used red Pex on cold water lines. Opaque, red and blue colors were used, however several toilets and faucets used all red. Any thoughts.

    Thanks

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  2. #2
    David Banks's Avatar
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  3. #3
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    Default Re: PEX

    Is that a code requirement, I could not locate any info on it.


  4. #4
    David Banks's Avatar
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    Default Re: PEX

    I would say it is more of a manufactures recommendation/requirement.


  5. #5
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    Default Re: PEX

    HydroPEX Tubing is designed for use in potable plumbing systems. HydroPEX Tubing meets ASTM F876/877, SDR 9, and is pressure tested to 180F at 100 psi. HydroPEX Tubing comes in red and blue to distinguish hot and cold water lines.
    Dumb, but not prohibited that I can see.

    Jim Luttrall
    www.MrInspector.net
    Dallas, Texas

  6. #6
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    Default Re: PEX

    Any color can be used for hot or cold. White, Blue or Red all do the same thing. It would be logical to use Red for hot and Blue for cold.

    Scott Patterson, ACI
    Spring Hill, TN
    www.traceinspections.com

  7. #7
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    Default Re: PEX

    Thanks everyone. Looks like one less item I need to mention.


  8. #8
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    Default Re: PEX

    Quote Originally Posted by Scott Patterson View Post
    Any color can be used for hot or cold. White, Blue or Red all do the same thing. It would be logical to use Red for hot and Blue for cold.

    As Scott said - any color is acceptable. The use of different colors was strictly to help the plumber *not* make mistakes when connecting the ends up. (no need to follow the pipes out, or, as some plumbers do with CPVC - write 'HOT' on the hot piping at each fixture location when they are running the piping).

    That said, those are not connected properly.

    Without reviewing the PEX installation instructions, I am pretty sure I remember them being like the PB instructions - come off the connections straight 12" (may have been 6" or 18"??), anchor with a strap, then make any bends. This will relieve the stress being applied to those fittings, which are not designed to take that stress.

    Why it that T&P valve in the tee under the thermal expansion thank? I doubt that tank is properly supported either.

    Jerry Peck, Construction / Litigation Consultant
    Construction Litigation Consultants, LLC ( www.ConstructionLitigationConsultants.com )
    www.AskCodeMan.com

  9. #9
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    Default Re: PEX

    Jerry,
    Good question about the TP valve, I am not sure about the fire suppression system, althought the system was under contruction. What are your thoughts why it is there.


  10. #10
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    Default Re: PEX

    Looks like those kitchen sink drain lines run uphill.


  11. #11
    Steve Lowery's Avatar
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    Default Re: PEX

    Also looks as though the sprayer hose will snag on the supply stop.


  12. #12
    David Banks's Avatar
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    Default Re: PEX

    Is that an Air Admittance valve? Check your local codes on these. Lots of info in past threads.


  13. #13
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    Default Re: PEX

    I am surprised it took someone that long to mention the improper drain slope, the whole house was that way. Good work for a 4 million dollar home. I will check on that valve. Thanks for the info


  14. #14
    Mike Cudahy's Avatar
    Mike Cudahy Guest

    Default Re: PEX

    Colors not a requirement in the codes, but one would hope people would plan 15 minutes ahead of a job. I've seen jobs where suddenly, red tubing is connected to blue - so either they ran out to tubing, the fittings are mini-magical tankless heaters, or the installer is color blind.

    Mike
    PPFA


  15. #15
    Mike Cudahy's Avatar
    Mike Cudahy Guest

    Default Re: PEX

    BTW - if you don't have a copy, I suggest downloading the "PEX Design Guide" -

    Design Guide - Residential PEX Water Supply Plumbing Systems

    Very good source of information for installers and inspectors for PEX.

    Mike
    PPFA


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