3/4" pvc pipe seems to have swollen/expanded

Discussion in 'Irrigation / Sprinkler Forum' started by sshepherd, Jul 6, 2011.

  1. sshepherd

    sshepherd New Member

    Joined:
    Jul 6, 2011
    Location:
    Pendleton Oregon
    I put in a new irrigation system last spring. I hadn't hooked up the drip system last year and am attempting to do so now except the pipe that I put in last year is just slightly bigger that the fitting that I just bought. The extra pipe in the garage (same pvc pipe) still fits the new couplers. I have tried sanding but it did not help. Any suggestions? Why did the pipe swell? :mad:
     
    sshepherd, Jul 6, 2011
    #1
  2. mike1059

    mike1059 irrigation tech.

    Joined:
    Jun 6, 2011
    Occupation:
    irrigation tech. for a landscape company
    Location:
    Portland, OR
    Although I have never run into a swolen pipe I have had deformed ends that will not fit a new fitting. Do you have room to cut the pipe back 1 or 2 inches, that should get you a clean fit.
     
    mike1059, Jul 6, 2011
    #2
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  4. LLigetfa

    LLigetfa DIYer, not in the trades

    Joined:
    Feb 6, 2011
    Occupation:
    Information Technology
    Location:
    NW Ontario, Canada
    Is this flex or rigid PVC? Flex PVC has a much lower pressure rating and so exposure to high pressure at warm temperatures could account for the swelling.
     
    LLigetfa, Jul 7, 2011
    #3
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