How to Change the Hot & Cold Water on a Single-Handled Faucet

Written by steve smith
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How to Change the Hot & Cold Water on a Single-Handled Faucet
Change your faucet temperature by swapping supply hoses. (Joe Madeira/Stockbyte/Getty Images)

Your faucet has both hot and cold water flowing into it from separate water pipes. Each flows into one side of the faucet where they mix and form temperate water based on how the handles are aligned -- even on a single-handle faucet. There are hot and cold indicators on the faucet handle, but these are based on which supply hoses are connected to the handles. If you want to change the temperature of the water flowing into each handle, just switch the supply hoses under the sink.

Skill level:
Moderately Easy

Things you need

  • Bucket
  • Wrench

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  1. 1

    Turn off the water supply valve on each incoming water pipe beneath the faucet. Shut the hot-side pipe valve, on the left, and cold-side valve on the right by turning each clockwise.

  2. 2

    Place a bucket underneath the cold-side pipe valve. Unscrew the supply hose (the hose running from the pipe to the faucet base on the cold side) to this pipe with a wrench. Allow the excess water to drain into the bucket.

  3. 3

    Move the bucket under the hot water pipe. Unscrew the supply hose connection on this pipe, allowing the water to drain into the bucket.

  4. 4

    Switch the supply hose lines so that the hot water line leads to the cold connection on the base of the faucet and the cold water line to the hot connection. Thread and tighten the connections with the wrench.

  5. 5

    Turn the water valves on and use the faucet. Hot water will now flow from the hot water pipe to the cold side of the faucet, and vice versa. The water mixes inside the faucet, so when the handle is turned towards hot, cold water is actually flowing. Turn the handle towards cold, and hot water flows into the faucet.

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