How to Replace Welded PVC Fittings
PVC is the common abbreviation for poly vinyl chloride, a type of plastic piping used frequently in plumbing and irrigation projects around the home. The lengths of straight PVC pipe are connected using PVC fittings or couplers. These fittings are solvent-welded together because the glue actually dissolves the PVC and bonds the two pieces together as one. Because of this welding action, if a repair is required you must cut the pieces out before installing a new fitting. Does this Spark an idea?
Things You'll Need
- PVC pipe cutters
- PVC primer
- PVC solvent
- Cloth
- PVC fitting
- Chemical-resistant gloves
- Reciprocating saw (optional)
Instructions
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1
Turn off any water supply that runs to the PVC pipe, if applicable, before beginning the replacement process.
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2
Locate the PVC fitting that you want to remove, which looks like a large plastic nut. Cut the pipe at one end of the fitting using PVC pipe cutters. Then slide the pipe cutters to the other end of the fitting and cut through the pipe at that end to completely detach the fitting.
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3
Clean off both ends of the PVC pipe thoroughly using a clean cloth. Ensure all surface of the PVC are dry, since the solvent does not work in the presence of moisture.
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4
Open a can of PVC primer and swab the inside of both ends of the fitting with the ball applicator attached to the lid of the solvent.
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5
Repeat the process to swab the exterior 1/2-inch area of both ends of the straight pipe you are attaching the fitting to.
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Slide the fitting over the end of one pipe as far as you can. Then pull the other straight end back slightly until you can push it inside the other end of the fitting.
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Wait five minutes to allow the solvent to completely weld the PVC pieces together. Turn the water supply back on and examine the new fitting for leaks.
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Tips & Warnings
You can also cut out the PVC fitting using a reciprocating saw instead of the PVC pipe cutters.
It’s a good idea to wear chemical-resistant gloves to prevent getting the PVC solvent on your hands.
References
- Photo Credit Comstock/Comstock/Getty Images
