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How to Connect PVC Pipes With Coupling

Polyvinyl chloride pipe, known simply as PVC within the plumbing and contracting trades, is an affordable and durable alternative to metal piping. PVC pipe is suitable for high-pressure and high heat plumbing systems, making it ideal for both industrial and residential use. One of the primary benefits of a PVC plumbing system is its ease of maintenance. Even if you're not an experienced plumber, you can perform basic work on your PVC plumbing. Connecting two pieces of pipe with a coupling is a common, and fairly simple repair.

Things You'll Need

  • Fine grit sandpaper
  • Microfiber cloth
  • Solvent
  • PVC primer
  • PVC cement
  • Pipes
  • Couplings
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Instructions

    • 1

      Rub the connecting ends of the pieces of PVC with fine grit sandpaper. The light abrasion will help for better adhesion of the PVC cement.

    • 2

      Dampen a microfiber cloth with a solvent, such as acetone or isopropyl alcohol. Wipe the ends of the pipe clean of any dirt or grease. Also wipe out the insides of the coupling with the cloth.

    • 3

      Apply a thin, even layer of purple PVC primer to the inside circumference of the coupling. Apply a matching layer of primer around the outside of one of the pipes. Allow the primer to set for roughly a minute.

    • 4

      Cover both applications primer with a layer of PVC cement. Insert the end of the pipe into one side of the coupling. Once the pipe is firmly seated in the coupling, give it a quarter-turn to lock it into place. Continue pushing the pipe into the coupling for three to five minutes as the cement sets.

    • 5

      Repeat the process to attach the end of the second pipe into the opposite end of the coupling. Allow the cement to cure for the time suggested by the manufacturer before connecting the assembly into your plumbing system.

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