How to Fix Plastic Leaking Pipes

Written by marshal m. rosenthal
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A leak in a plastic PVC pipe does not require replacing the entire pipe, providing you can turn the water off that is running through the pipe and leave it off for the time needed to do the repair work. To fix the leak, fill the tear in the pipe with a fast setting waterproof epoxy cement. The cement can be acquired from a hardware store or home and garden shop. A few household tools will be needed, also.

Skill level:

Things you need

  • Paper towels
  • 80-grit sandpaper
  • 200-grit sandpaper
  • Compressed air
  • Needle
  • 2 epoxy cement tubes
  • Epoxy cement syringe
  • Wooden craft stick

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  1. 1

    Turn the valve to discontinue the flow of water through the PVC pipe. Wipe the surface where the leak is in the pipe with paper towels. Continue wiping the surface until it is dry.

  2. 2

    Place the edge of a piece of 80-grit sandpaper against the pipe, to one side of the tear. Press down on the sandpaper wile dragging the edge across the tear to its other side. Life the sandpaper up and return to the side where you started. Repeat the procedure to roughen the tear on the pipe an additional eight times.

  3. 3

    Repeat the entire procedure just completed, only this time with 200-grit sandpaper.

  4. 4

    Blow the plastic dust off the pipe with bursts of compressed air. Remove the cap from each of the two epoxy cement tubes. Insert the end of a needle into each tube to open the end.

  5. 5

    Place each tube into a compartment on the cement syringe; the open end of the tube faces down inside the compartment.

  6. 6

    Place the tip of the syringe against the surface of the pipe, to one side of the tear. Press in on the plunger to mix the contents of the tubes and force the mixture out of the syringe as you drag it across the length of the tear. Repeat this procedure until the tear is completely filled.

  7. 7

    Smooth the surface of the tear to remove excess mixture using the edge of a wooden craft stick. Dispose of the stick and the pin used earlier in the trash.

  8. 8

    Remove the tubes from the syringe and replace their caps. Let the epoxy cement set for the length of time specified in the instructions before releasing the water to flow through it again.

Tips and warnings

  • The levels of sandpaper do not have to be exact, providing that you begin with a "coarse" grit sandpaper and end with a "fine" grit sandpaper.

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