How to Change Water Pipes


It does not take a professional plumber to change water pipes. You can easily do it. All you need is the right stuff and the knowledge to do it. Some people use plastic water pipes while others prefer copper water pipes. Plastic water pipes are cheaper to use and the only difference between the two is the price.

Things You'll Need

  • Pipe cutter
  • PVC pipes
  • All-purpose cement
  • All-purpose primer
  • Tape measure
  • Pipe fittings
  • Sand paper
  • Shut-off valve
  • Shut the water off and open the valves all through the house to drain any excess water. Shut off the hot water tank. Using the pipe cutter, cut the entire bad pipe in all areas. Take out the old pipe.

  • Cut and clean any old pipes, which are still usable. Measure new pipe with the tape measure and cut them with the pipe cutter. Clean the fittings with the sand paper. Using the fittings, put the old good pipe with the new pipe.

  • Put the pipes together before you glue them to make sure they are going to fit. Once you know they are going to fit, take them apart and primer them inside and out. Glue one piece at a time and turn the pipes and fittings ¼ inch. Hold for 5 to 10 seconds to make sure they are sealed.

  • Let everything set for 60 to 90 minutes. After they have set, have someone else turn the water back on while you make sure there are no leaks. Once you make sure there are no leaks, turn the hot water tank back on.

  • Repeat Step 1 through Step 4 if you find any leaks.

Tips & Warnings

  • Always make sure the water is turned off before changing the water pipes. Always make sure to clean, primer and turn the pipes as you are putting them in. Double-check your fittings and pipes to make sure they are all glued and properly secured.
  • Never turn the water back on immediately. Make sure the glue on all the pipes and fittings are dried first.

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  • Photo Credit David Knudsen;
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