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  1. #1
    Join Date
    Apr 2008
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    McKinney Texas
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    472

  2. #2
    Join Date
    Mar 2007
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    Ormond Beach, Florida
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    25,996

    Default Re: Water heater PEX CPCV connection.

    Yes it does.

    Question: Where is that going to/coming from? It goes up to what looks like a male hose thread adapter which has an elbow connector screwed onto it with a black pipe connected to it?

    There are also combustible material being too close to the B-vent/draft hood too - that foam insulation is combustible and needs to be 6 inches from that draft hood.

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

  3. #3
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    Apr 2008
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    McKinney Texas
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    472

    Default Re: Water heater PEX CPCV connection.

    Quote Originally Posted by Jerry Peck View Post
    Yes it does.

    Question: Where is that going to/coming from? It goes up to what looks like a male hose thread adapter which has an elbow connector screwed onto it with a black pipe connected to it?

    There are also combustible material being too close to the B-vent/draft hood too - that foam insulation is combustible and needs to be 6 inches from that draft hood.

    It is a thermal expansion valve (made by WATTS).

    Yes, I was aware of the combustion material (insulation).

    I do not believe CPCV will bond with PEX in a pressure line. What do you think?


  4. #4
    Join Date
    Mar 2007
    Location
    Ormond Beach, Florida
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    25,996

    Default Re: Water heater PEX CPCV connection.

    Quote Originally Posted by Gene South View Post
    It is a thermal expansion valve (made by WATTS).
    What is the approved discharge drain line material for it?

    I do not believe CPCV will bond with PEX in a pressure line. What do you think?
    Nope - all materials are required to be assembled and connected with proper materials and fittings, which means there needs to be a proper fitting/adapter between the CPVC and the PEX.

    Section P2906 Materials, Joints and Connections
    (the see the following sections - too much to type)
    - P2906.9 Plastic pipe joints
    - P2906.9.1 Solvent cementing
    - P2906.9.1.2 CPVC plastic pipe
    - P2906.9.1.5 Cross-linked polyethylene plastic (PEX) and its two subsections Flared joints and Mechanical joints

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

  5. #5
    Join Date
    Mar 2012
    Location
    Lansdale, PA
    Posts
    876

    Default Re: Water heater PEX CPCV connection.

    I am looking at this on my phone and cannot see it that well. ls that coming from the TPR valve? Regardless, it looks like a DIY mess.


  6. #6
    Join Date
    Oct 2010
    Location
    MONTREAL QUEBEC-CANADA
    Posts
    1,715

    Default Re: Water heater PEX CPCV connection.

    Solvent-based glue will soften the PEX tubing and the joint will not hold.

    Robert Young's Montreal Home Inspection Services Inc.
    Call (514) 489-1887 or (514) 441-3732
    Our Motto; Putting information where you need it most, "In your hands.

  7. #7
    Join Date
    Dec 2007
    Location
    Holladay, UT
    Posts
    565

    Default Re: Water heater PEX CPCV connection.

    There's no reason they couldn't have continued that small black line all the way to the floor drain. Was there a floor drain? Here is the spec sheet for the BRV. By the way, I see these leaking a lot. They are designed to relieve pressure from thermal expansion but if you see it running constantly it is broken. I include this in my reports so the clients can monitor it.

    http://media.wattswater.com/es-BRV.pdf

    Tom Rees / A Closer Look Home Inspection / Salt Lake City, Utah

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