Joining Copper pipe PVC/CPVC

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by BenRVT, Feb 13, 2020.

  1. BenRVT

    BenRVT New Member

    Joined:
    Feb 13, 2020
    Location:
    Colorado
    Today I saw a 1.25 inch (inner diameter) FPT X FPT PVC coupling joining two sections of copper pipe.

    I know typically if your going to join copper and PVC (with threads) you should use male PVC and female copper. I've never seed one PVC coupling joining to copper pipes.

    Is this allowed, or is this a code violation?

    Thanks!
     
  2. hj

    hj Moderator & Master Plumber Staff Member

    Joined:
    Aug 31, 2004
    Occupation:
    Plumber
    Location:
    Cave Creek, Arizona
    Depending on WHAT is in the pipes, it may not be a violation, but it is surely someone's lapse in judgement to do it.
     
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  4. BenRVT

    BenRVT New Member

    Joined:
    Feb 13, 2020
    Location:
    Colorado
    Sorry I should have specified. It is water for a sprinkler system.
     
  5. WorthFlorida

    WorthFlorida The wife is still training me.

    Joined:
    Oct 28, 2009
    Occupation:
    Retired
    Location:
    Orlando, Florida
    If it is outside past the backflow prevent or an anti siphon device, it doesn’t matter. The only code for irrigation systems is at the backflow or anti siphon device. After that it is only best practices. If it is in a basement you might want to change it out so it doesn't blow out one day. Florida does have some state statues for irrigation systems but it’s the placement of sprinkler heads, rain sensors and water management.
     
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  6. Reach4

    Reach4 Well-Known Member

    Joined:
    Sep 25, 2013
    Location:
    IL
    There exist strong female PVC couplers. They are heavier than the common ones. I am thinking of ones that can be used for connecting the pipes hanging down a deep well.

    For now, you could reinforce your suspect coupler with a couple of worm gear clamps over the threaded parts.
     
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  7. BenRVT

    BenRVT New Member

    Joined:
    Feb 13, 2020
    Location:
    Colorado
    Do you think there is a risk of of the PVC cracking without reinforcing? That's what I'm worried about. It's a schedule 40 PVC coupling.
     
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