How to Install the Plumbing on a Washer


Washers need two different plumbing hookups in order to work properly. One is the water supply that provides the washer with clean water for washing; the other is the drain hose, which hooks up to your home's sewer system to carry away the dirty water from the washer. Installing this plumbing on a washer isn't difficult, but take your time and do the job right.

Things You'll Need

  • Washer water-supply hose
  • Washer drain hose
  • Plumber's tape
  • Pliers
  • Plastic ties
  • Wire
  • Wrap the outlet on the water-supply valve and the inlets on the washing machine with plumber's tape. Circle the pipe at least twice with the tape, stretching tightly. Trim off any excess with the scissors.

  • Thread one end of the washer hose to the water-supply valve. Thread the other end to the inlet on the washing machine. Tighten with the pliers. Do not squeeze too tightly with the pliers; this might damage the threads or the pipe couplings.

  • Attach the straight end of the drain hose to the back of the washing machine. The drain hose inlet usually is located near the bottom. Depending on your washing machine make and model, the hose might screw to the drain opening on the back with a coupling (as with the water-supply hose), or it might plug into the opening and then lock in place by turning it to the side.

  • Insert the curved end of the drain hose into the sewer drain pipe. Some drain hoses come with hooks or attachments to keep them in place on the pipe, or you can connect it yourself by using a plastic tie or piece of wire.

  • Turn on the water-supply valve by rotating it counterclockwise.

  • Run the washer on an empty load and watch for leaks. Tighten any couplings if necessary.

Tips & Warnings

  • If you're concerned about leaving the water-supply valves on all the time, you can install an automatic water cutoff.

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  • Photo Credit washer drain pump image by Tammy Mobley from
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