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Thread: Polybutylene?

  1. #1
    Scott Dana's Avatar
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    Default Polybutylene?

    In several homes over the past few months I've come across pipes that are grey that are installed between the cut off valve and the sink faucets.

    First of all, is there a term for the piping that is installed in these locations (service pipes?).

    Secondly, is this Polybutylene?

    The main pipes throughout the home are copper, but under all the sinks is this grey stuff. Home is 15 or so years old. Thanks.

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  2. #2
    Join Date
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    Spring Hill (Nashville), TN
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    Default Re: Polybutylene?

    Yes those are PB sections. They are OK, they have copper connectors and and are not using crimp rings.

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

  3. #3
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    Default Re: Polybutylene?

    They are still PB. As such, I would think that they would still be subject to failure. However, as far as I have been able to find, when the material is used as a flexible riser between the shutoff valve and the fixture, it was not a part of the class action settlement.

    I still mention the possibility of leaks developing and advise replacement.

    Department of Redundancy Department
    http://www.FullCircleInspect.com/

  4. #4
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    Default Re: Polybutylene?

    The term for any type of pipe connecting the fixture to the shutoff is the supply line. Yes the gray plastic ones are PB.

    ' correct a wise man and you gain a friend... correct a fool and he'll bloody your nose'.

  5. #5
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    Default Re: Polybutylene?

    Quote Originally Posted by Rick Cantrell View Post
    The term for any type of pipe connecting the fixture to the shutoff is the supply line.
    I've always called them, and heard them called, 'supply risers', either lavatory risers or toilet risers (they have different ends on them). Or even simply 'lav risers' or 'toilet risers'.

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

  6. #6
    Scott Dana's Avatar
    Scott Dana Guest

    Default Re: Polybutylene?

    Much appreciated gentlemen.


  7. #7
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    Default Re: Polybutylene?

    Jerry
    I know you know this, but someone may not.
    There are two different supply risers.
    One for the toilet, and a different one for the faucet (lav, kitchen sink, wet bar, and laundry sink/tub use the same one).
    And Jerry is correct, it should be called a supply riser.

    ' correct a wise man and you gain a friend... correct a fool and he'll bloody your nose'.

  8. #8
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    Default Re: Polybutylene?

    Quote Originally Posted by Rick Cantrell View Post
    Jerry
    I know you know this, but someone may not.
    There are two different supply risers.
    One for the toilet, and a different one for the faucet (lav, kitchen sink, wet bar, and laundry sink/tub use the same one).
    Rick,

    Yep, that's why I said:

    Quote Originally Posted by Jerry Peck View Post
    either lavatory risers or toilet risers (they have different ends on them).


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

  9. #9
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    Smile Re: Polybutylene?

    Just as you was not trying to " One up" me by correctly calling it a "Riser", I wasn't trying to get one up on you either.
    I thought that there may be someone who is unaware that the same riser that fits a lavatory also fits a kitchen sink, wet bar, and laundry tub, not just the lavatory (bathroom sink).

    ' correct a wise man and you gain a friend... correct a fool and he'll bloody your nose'.

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