How to Connect a Poly Pipe

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Polyethylene pipe is used in lawn and garden irrigation systems where sprinklers and other low pressure fittings are attached. Due to poly pipe's flexible nature, far fewer 90-degree fittings need to be installed. Also, unlike PVC pipe, no primer or cement is needed to fit one piece of pipe to another, and consequently it takes less time to install. Poly pipe comes in rolls of 300 feet and is available in different diameters.

Things You'll Need

  • Tape measure
  • Marker pen
  • Poly pipe
  • Pipe cutter
  • Fittings
  • Hose clamps
  • Propane torch
  • Crimping pliers
  • Measure and mark the desired length of poly pipe. Rest the pipe in the jaws of a pipe cutter, tighten the blade to the mark and rotate the cutter around the pipe until it is cut through.

  • Push a hose clamp over the end of the poly pipe, moving it six inches or so down the pipe. Turn on a propane torch and heat around the end of the pipe. Cut for a few seconds only. This will make the pipe swell slightly and help ensure a tight fit once it cools.

  • Push the plastic fitting into the end of the pipe. The hollow plastic fitting can be straight or shaped like a "T" to fit two pipes together. The ends are either barbed or threaded.

  • Pull the hose clamp along the pipe so that it rests over the fitting. Tighten the fitting to the pipe with crimping pliers. Now follow the same process to attach another section of poly pipe to the other end of the fitting.

Tips & Warnings

  • Do not over-tighten the hose clamp to the pipe, as this can crack the poly pipe.

References

  • Photo Credit Park Sprinkler image by Gary Ng from Fotolia.com
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