How to Replace a Shower Valve Cartridge
- 1). Turn off the main water supply to the house. The valves are generally next to the water meter where the water pipes enter the house. Lift up on the faucet lever to drain the lines of water.
- 2). Remove the faucet handle by using a hex wrench to unscrew the set screw at the base of and under the lever. Lift off the metal cover under the handle.
- 3). Insert a specialized shower socket wrench, available at home improvement stores, into the faucet body and remove the locking nut by turning it counterclockwise.
- 4). Pull out the cartridge by lifting it straight out of the faucet body with a pair of pliers. If it is stuck, apply gentle pressure.
- 5). Replace the old cartridge with the exact same type from the home improvement store by aligning the holes in the cartridge with those in the faucet body and re-inserting it.
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