How to Repair a PVC Fitting


Repairing a leaking PVC fitting will save you both time and money because you will not have to cut out and replace the fitting. To fix the PVC fitting, you can use quick-curing, plastic-based glue. The glue thickens as it hardens, and this determines when you apply the glue to a leaking or cracked PVC fitting. If you allow the glue to set long enough, it will turn into putty--similar to epoxy.

Things You'll Need

  • 200-grit sandpaper
  • Clean, dry rags
  • Tape measure
  • Plastic repair glue kit
  • Scuff the area you need to repair with the 200-grit sandpaper. Sand the surface of the PVC fitting until it no longer has a shine.

  • Wipe the sanded area with a clean, dry rag to remove the sanding dust created during Step 1.

  • Determine the length of the repair by measuring the crack with the tape measure. Refer to the packaging of the plastic glue to determine the amount of plastic glue required to repair the PVC fitting.

  • Mix the components of the plastic glue per the manufacturer's instructions. Mix enough plastic glue to cover an area 50 percent larger than the repair.

  • Allow the plastic glue to thicken to the point that it will cover the repair without entering the PVC fitting.

  • Apply the thickened PVC glue to the surface of the PVC fitting. Make sure the plastic glue bonds to the surface of the PVC, and work all the air from underneath the plastic glue.

  • Clean the mixing cups after the plastic glue has completely cured, as it will remove easily after it is no longer elastic.

  • Shape the cured plastic with 200-grit sandpaper to eliminate high spots between the glue and the PVC fitting.

  • Run water through the PVC fitting to ensure that it is repaired.

Tips & Warnings

  • Allowing the PVC glue to set to the putty stage will allow you to fill wide cracks in PVC fittings. You apply the putty stage glue as you would epoxy putty.

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  • Photo Credit Comstock/Comstock/Getty Images
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