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    cullen3's Avatar
    cullen3 Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Jun 4, 2015, 04:14 AM
    Cast Iron replaced with PVC
    My plumber did some repair work on my main stack in the basement of my house. The main stack is made of cast iron, but he replaced a 3 foot section with PVC. I'm concerned the PVC will crack eventually under all the weight of the cast iron above it. Is this a valid concern?
    Milo Dolezal's Avatar
    Milo Dolezal Posts: 7,192, Reputation: 523
    Plumbing Expert
    		  
    #2

    Jun 4, 2015, 06:57 AM
    There is no problem with having piece of PVC in place of C.I. - provided, the C.I. is properly supported above the PVC section. That pipe support will hold the weight of C.I. pipe.

    If your plumber failed to properly support C.I above PVC - then your concern is valid. If that is the case, I would call him back and asked him to install proper pipe support

    Milo
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