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  1. #1
    Matt Kozusko's Avatar
    Matt Kozusko Guest

    Default Blurred PEX labeling

    A 1994 home that I inspected with hot water baseboard heat had a new boiler installed. All markings on the PEX tubing were illegible. I have seen this in limited amounts in the past, but never an entire crawl space and mechanical room without a legible label. Does the marking on the tubing have some kind of pressure or heat sensitivity? Could this have occurred due to excessive UV exposure? It appears to be Wirsbo, but I always like to see that appropriate pressure and temperature rating. I've included a picture.

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  2. #2
    Matt Kozusko's Avatar
    Matt Kozusko Guest

    Default Re: Blurred PEX labeling

    It's more flexible than polybutylene and opaque. I see quite a bit of PB, that's not it here. Although, you do raise a good question: could someone be trying to hide something?


  3. #3
    Join Date
    Mar 2007
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    Orlando, FL
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    1,340

    Default Re: Blurred PEX labeling

    Quote Originally Posted by Kevin Wood View Post
    If it is opaque then they are hiding a low quality line.
    So you think that someone deliberately rubbed the words/letters off the pipe to obscure its true origin?

    I've seen plenty of pipe (or wire, wood, etc) with blurry markings. Keep looking, you'll find a legible spot somewhere....


  4. #4
    Randy Rogers's Avatar
    Randy Rogers Guest

    Default Re: Blurred PEX labeling

    Quote Originally Posted by Matt Kozusko View Post
    It's more flexible than polybutylene and opaque. I see quite a bit of PB, that's not it here. Although, you do raise a good question: could someone be trying to hide something?
    If it is Wirsbo the HePex lettering is black, the AquaPex is blue, if that helps.


  5. #5
    Jeffrey Maul's Avatar
    Jeffrey Maul Guest

    Default Re: Blurred PEX labeling

    Can't help you with identifying this particular PEX but I'd like to point out the importance of having the right PEX installed. It's not generally a temperature or pressure rating that is the issue. PEX designed for a closed loop heating system, such as Wirsbo HEPEX has an oxygen barrier in the material.

    If this not a PEX with an oxygen barrier, such as HE PEX it will cause damage to the heating system. PEX used for potable water such as Aquapex will allow oxygen to escape from the contained water causing the heat loop filled with oxygen deprived water which with eat away at the metal surfaces of the system - baseboards, pumps, etc.


  6. #6
    Join Date
    Sep 2007
    Location
    North Las Vegas Nv 89081
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    37

    Default Re: Blurred PEX labeling

    Here in Vegas it's a known fact that Wirsbo, if left laying out in the sun the lettering will fade


  7. #7
    Join Date
    Mar 2007
    Location
    Ormond Beach, Florida
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    26,252

    Default Re: Blurred PEX labeling

    Quote Originally Posted by Jerry DiGiovanni View Post
    Here in Vegas it's a known fact that Wirsbo, if left laying out in the sun the lettering will fade
    It is also a known fact that, in Vegas or anywhere else, PEX *is not allowed to be left laying out in the sun* because PEX IS NOT SUNLIGHT RESISTANT and is not to be stored where it is exposed to sunlight.

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

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