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  • Results 1 to 11 of 11

    Thread: Rock fell in... how to patch liner

    1. #1
      dragonfly1976 is offline Senior Member
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      Rock fell in... how to patch liner

      I was standing on the edge yesterday netting to thin out the herd, when all of a sudden I was in the pond.i was standing on a large flat rock , not much weight, but had a sharp corner I believe punctured my liner. Im going to assume I will have to drain the pond and patch it dry? Any other solutions?

    2. #2
      catfish whiskers's Avatar
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      You will have to drain the pond to do it right
      Patching a liner is difficult , and I have never had success with any glues , primers , liner tape , etc.
      A patch that mechanically fastens with screws and sealant is the only way Ive had success, like a bottom drain install.
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      Heres a patch Ive made using rigid ABS or PVC flat sheet stock . The top cover should be 1/4 Stock , and the under ring should be minimum 3/8 or even 1/2 stock .To make a template with equally spaced holes , borrow a flange ring from a bottom drain , or smaller flanged fitting , so that the holes will line up . Use stainless sheet metal screws to fasten , and the pre drilled holes in the under ring need to be small enough to grab the screw threads . Pre assemble , screwing everything together before its installed , to make the actual install easier .
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      If You find a small hole , cut it into a sharp slit so that You can slip the split ring through it , the slit can be smaller than the split ring , as the rubber will stretch . In this patch , You will only be able to use sealant on the cover , so clean the liner very well to give the sealant the best possible surface to stick to. Use more sealant than You need and let it squish out , and use sealant under the screws as well . It is the mechanical fastening with this type of patch , that uses the sealant only as a gasket , otherwise , no sealant will stick on its own.

    3. #3
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      We had some old posts about how to make a pipe boot for pipe penetrations through a liner. If , in fact, the rock totally penetrated through the liner, you now have the first part of the pipe boot procedure already done ! Depending on how big the hole is, get a short stub of pipe and cap it off on both ends, stick it through the hole in the liner, and follow the pipe boot process to seal off any potential leak. Now your hole is fixed, but you will have a short stub of pipe sticking through.

    4. #4
      dragonfly1976 is offline Senior Member
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      Thanks guys for your response. It’s gonna be a lot of work I guess. At this point I’ll have to wait until spring.

    5. #5
      kimini is online now Senior Member
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      There's some 3M silicone adhesive that I think cures underwater, the question becomes whether it's toxic to fish

    6. #6
      OCkoiFan's Avatar
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      You should have just try to flow in there rather stand on that rock
      Thing just happens which suck huh
      M.Nguyen


    7. #7
      dragonfly1976 is offline Senior Member
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      Quote Originally Posted by OCkoiFan View Post
      You should have just try to flow in there rather stand on that rock
      Thing just happens which suck huh
      Lol. I wish it was easy to fix.

    8. #8
      koi4u2c is offline Senior Member
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      Maybe there is no hole. I had a heavy large rock with sharp point fall into one of my ponds. Left a huge dent in the ground under the liner, but no hole in the liner.
      Nancy



    9. #9
      dragonfly1976 is offline Senior Member
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      I lost 1/2 of water in a day. (Not normal) Im pretty sure there is a small hole. One thing that saved me from having a bigger hole is about 2 of cushion/liner underneath the pond liner. Im heading to Korea tomorrow so It looks like this will have to wait til spring now.

    10. #10
      dragonfly1976 is offline Senior Member
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      Update: drained out most of the pond to find the hole in my liner. Fortunately it was in the shallow area so the fish could stay in the pond, but they were not happy. The hole was about as big as a quarter. I used a liner patch kit and followed the instructions. Very easy to do. It only took 15 minutes to do it right. Now it will take all night to fill the pond back up!
      Attached Images Attached Images  

    11. #11
      OCkoiFan's Avatar
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      Sound like fixing a cycle tire tube the old days
      M.Nguyen


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