A shower faucet's valve controls the flow of hot and cold water through the showerhead. Over time, a shower's valve will wear out, causing water to leak uncontrollably out of the showerhead or below the handle. A worn-out shower valve can also make turning the shower's water all the way off a challenging task to perform. Installing a new valve in the shower's faucet takes about an hour to complete if you have not worked on a faucet before.
Things You'll Need
- Phillips screwdriver
- Small flat-head screwdriver or needle-nose pliers
- Allen wrench
- Handle-puller tool
Close the house's main water valve. Remove the faucet handle's retaining screw, located either under a plastic cover or in a small hole in the base of the handle, with a Philips screwdriver. Pull the handle off the faucet. Heat the shower handle with a hairdryer if it is stuck, and then pull it off the faucet.
Unscrew any adapter pieces or use pliers to remove any nuts located just below the faucet. Pry out the shower valve's retaining clip using either a small flat-head screwdriver or a pair of needle-nose pliers.
Twist the old valve counterclockwise to remove it from the faucet, using an Allen wrench. Squirt penetrating lubricant into the connection between the valve and the faucet if the valve does not turn easily.
Replace any clips, nuts or adapter pieces you removed. Turn the new valve clockwise onto the faucet assembly.
Replace the faucet's handle and retaining screw. Turn the water in the house back on by opening the main water valve.
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