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    Giddy's Avatar
    Giddy Posts: 3, Reputation: 1
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    #1

    Nov 4, 2007, 05:07 AM
    Hole in Pvc pipe in concrete
    I recently drilled a 1/4 inch hole in the top side only of a 1 inch PVC water supply pipe that is buried in a concrete slab in close quarters. What is the best way to repair it? What are the options? Thank you.

    Giddy
    iamgrowler's Avatar
    iamgrowler Posts: 1,421, Reputation: 110
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    #2

    Nov 4, 2007, 07:16 AM
    Quote Originally Posted by Giddy
    I recently drilled a 1/4 inch hole in the top side only of a 1 inch PVC water supply pipe that is burried in a concrete slab in close quarters. What is the best way to repair it? What are the options? Thank you.

    Giddy
    Well, it doesn't sound like you will be able to pull the piping far enough apart to install a coupling, so your next best plan would be to put it back together with four 90's.
    Giddy's Avatar
    Giddy Posts: 3, Reputation: 1
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    #3

    Nov 4, 2007, 04:01 PM
    Can I plug the hole with a self-made pvc plug with pvc cement, resurface over the plug, and place over the area a coupling split lengthwise (flange takenout) and cement it on held by expansion clamps? Giddy
    iamgrowler's Avatar
    iamgrowler Posts: 1,421, Reputation: 110
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    #4

    Nov 4, 2007, 04:44 PM
    Quote Originally Posted by Giddy
    Can I plug the hole with a self-made pvc plug with pvc cement, resurface over the plug, and place over the area a coupling split lengthwise (flange takenout) and cement it on held by expansion clamps? Giddy
    I sure wouldn't, especially on a pressurized line.
    ballengerb1's Avatar
    ballengerb1 Posts: 27,378, Reputation: 2280
    Home Repair & Remodeling Expert
    		  
    #5

    Nov 4, 2007, 05:16 PM
    You may be running 45 psi in that pipe and the patch you describe won't hold forever, if ever. Curious, how did you drill into a pipe that is buried in concrete?
    KISS's Avatar
    KISS Posts: 12,510, Reputation: 839
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    #6

    Nov 4, 2007, 08:35 PM
    Only idea I have is to tap the hole and use teflon tape and use a Plastic NPT plug such as ones available from here:
    Error - BrassCatalog.com

    A hole for a 1/8 NPT plug would be 0.332 or a "Q" bit. iCrank NPT Thread Tap Drill Size Chart (Inch)

    You'll need a 1/8 NPT tap as well and probably some practice to get the depth right if you've never tapped NPT threads.
    labman's Avatar
    labman Posts: 10,580, Reputation: 551
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    #7

    Nov 4, 2007, 08:48 PM
    As thin as regular PVC pipe is, you wouldn't be able to cut much in the way of threads for a pipe plug.

    There are pipe repair sleeves you wrap around the pipe and tighten up. They are sized to standard pipe sizes. I am not sure how they fit on PVC.
    speedball1's Avatar
    speedball1 Posts: 29,301, Reputation: 1939
    Eternal Plumber
    		  
    #8

    Nov 5, 2007, 05:58 AM
    Quote Originally Posted by Giddy
    I recently drilled a 1/4 inch hole in the top side only of a 1 inch PVC water supply pipe that is burried in a concrete slab in close quarters. What is the best way to repair it? What are the options? Thank you.

    Giddy
    Several options come to mind. Neptune Inc. makes a pipe repair kit; Neptune Research
    Or if you have room a dresser coupling,( see image) might do the trick. Good luck, Tom
    iamgrowler's Avatar
    iamgrowler Posts: 1,421, Reputation: 110
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    #9

    Nov 5, 2007, 06:03 AM
    Quote Originally Posted by speedball1
    Several options come to mind. Neptune Inc. makes a pipe repair kit; Neptune Research
    or if you have room a dresser coupling,( see image) might do the trick. Good luck, Tom
    You aren't suppose to bury those under concrete, Tom.
    speedball1's Avatar
    speedball1 Posts: 29,301, Reputation: 1939
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    #10

    Nov 5, 2007, 06:26 AM
    You aren't suppose to bury those under concrete, Tom.
    I know! But on a DIY site we don't always go by code. I offered a option. Regards, Tom
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