- 1). Turn off the water to the shower by opening the access panel on the wall behind the faucet and turning both handles clockwise until tight. If you do not have an access panel behind your shower, shut off the house's main water valve then turn on a faucet to release any leftover water pressure.
- 2). Remove the screw that holds the faucet's handle in place. The screw may be located under a cap in the middle of the handle, or it may be in a small hole or recess near the base of the handle.
- 3). Pull the handle straight away from the faucet to remove it. Clamp a handle puller to the backside of the handle if it is stuck then twist the puller's middle post clockwise until the handle comes free.
- 4). Twist or pull off any metal sleeves, washers or retaining nuts to expose the valve. Pull out any clips or pins from the valve with a pair of needle-nose pliers.
- 5). Spray penetrating lubricant into the threads of the stuck valve. Wait 10 minutes for the lubricant to soak in then twist the valve counterclockwise with the pliers. Soak the penetrating lubricant into the valve's threads for longer if the valve still will not turn.
- 6). Apply plumber's grease to the threads of a new valve and twist it into the pipe clockwise until tight. Reassemble the rest of the faucet and turn the water to the faucet back on.
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