How to Install Plumbing Drain Lines

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All that water going down your sink has to go somewhere, and the drainpipes installed out of sight, out of mind are the carriers. Installing new drainpipes is often necessary when old pipes break or begin leaking. New sink installations may also require new pipe sizes. Installing strong, versatile PVC pipe ensures a long life from your drain pipes. Proper installation also makes removing the pipes or working in the confined space under your sink easier.

Things You'll Need

  • Metal drain
  • Gasket
  • Fiber gasket
  • PVC pipe flange
  • PVC trap
  • PVC T-connection
  • Plastic nuts
  • Plastic washers
  • Plumbers putty
  • Wrench
  • Pipe dope
  • Place a bead of plumber's putty on your metal drain/strainer and place it into the hole in your sink.

  • Place the rubber gasket on the bottom of the strainer on the underside of the sink, then place the fiber gasket over it. Tighten the nut to hold it in place. Tighten it with a wrench. Wipe off any plumber's putty that squirts out.

  • Apply pipe dope to the tail end of your flange piece and place the tailpiece washer on the end. Apply another layer of pipe dope to the end of the washer. Slide the basket strainer nut onto the tailpiece and tighten the tailpiece to the fiber gasket.

  • Attach the washer to the flange going to your garbage disposal, if you have one. Place the crossover PVC-T in place and measure how high up it goes on the flange. Cut the flange using a PVC cutter so that it fits into the PVC-T. Put on the nut for the PVC-T, apply plumber's dope and attach.

  • Cut the first tailpipe you installed so that it will fit into the PVC-T. Attach your washer and pipe dope and hand tighten.

  • Place two nuts onto the wall piece of the PVC trap and attach one nut to the wall adapter. Connect the trap to this piece. Cut the PVC if necessary and hand tighten the nut.

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References

  • Photo Credit Jupiterimages/Photos.com/Getty Images
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