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  1. 04-08-2008, 05:44 PM #1
    Manzoor Husain's Avatar
    Manzoor Husain
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    Default Hot Water Heater TP valve drain pipe

    Hi, This is Manzoor
    I have recently seen that in new homes they are using a flexible copper pipe in the drain line of the TP valve. I had always thought that this pipe has to be solid copper, steel or cpvc. Has any one else experieced this ? Is it code compliant to use flexible pipe?

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  2. 04-08-2008, 05:47 PM #2
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    Rick Hurst
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    Default Re: Hot Water Heater TP valve drain pipe

    Those flex type copper lines are reduced and not 3/4in. inside diameter as required.

    Therefore they are not acceptable.

    Rick

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  3. 04-08-2008, 06:37 PM #3
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    Jerry McCarthy
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    Default Re: Hot Water Heater TP valve drain pipe

    Ditto Rick. Refer IRC 2006 P2803.1(3)

    Jerry McCarthy
    Building Code/ Construction Consultant
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  4. 04-20-2008, 09:32 AM #4
    Manzoor Husain's Avatar
    Manzoor Husain
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    Default Re: Hot Water Heater TP valve drain pipe

    Thank you for pointing out the reduction in the diameter of the pipe.I am surprised that the code inspectors don't consider this a problem.

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