How do I Replace a Cold Water Tap for a Washer in a Laundry Room?

Written by elizabeth knoll
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Your washing machine is connected to your home's hot and cold water supply piping with either ball or gate valves. Gate valves require many turns to either open or close the valve, whereas ball valves only require 1/4 turn. Since you will either have the valve to your washing machine 100 per cent open or 100 per cent close, it is most efficient to use ball valves. Replacing the cold water valve supplying your washing machine will become likely if it fails to work or begins to leak.

Skill level:
Moderately Easy

Things you need

  • Safety glasses
  • Propane torch
  • Tongue-and-groove pliers
  • Sandpaper
  • Fitting brush
  • Soldering flux
  • Solder

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  1. 1

    Turn off the main water supply valve to your home. It will most likely be located by your water meter.

  2. 2

    Unscrew the washing machine hose from the old cold water valve.

  3. 3

    Turn on your propane torch and heat up the connection where the valve meets the piping.

  4. 4

    Grab the old valve with a pair of tongue-and-groove pliers and slide it off of the piping once the solder melts.

  5. 5

    Clean the copper pipe with sandpaper and use a fitting brush to clean the inside of the new cold water valve.

  6. 6

    Brush flux around the water piping and brush it inside the new cold water valve.

  7. 7

    Slide the water valve over the piping until it is on as far as it will go. Heat up the connection with your propane torch.

  8. 8

    Hold solder on the connection until it begins to melt. Allow the solder to flow completely around the connection and then remove the torch.

  9. 9

    Screw the washing machine hose on to the cold water valve and turn on the water supply. Turn the cold water valve to the "On" position.

Tips and warnings

  • Wear safety glasses when soldering to prevent serious eye injury.

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