How to Repair a Tub & Shower Valve

If the faucet valve for your tub and shower malfunctions, use the steps here to make the repair.

You will need

  • Screwdriver
  • Pliers
  • Adjustable wrench
  • Stem wrench
  • Replacement parts
  • Sketch (optional)
  • Packing nut washer (optional)

Step 1 Turn off water Turn off the water to the bathtub and shower at the shut-off valve. Let any remaining water flow out of the faucet.

Step 2 Remove the cap and screw Remove the cap and screw from the faucet handle using a screwdriver, and take off the handle and escutcheon.

Step 3 Remove stop tube and cartridge Remove the stop tube and cartridge with pliers if you have a washerless faucet. Washerless faucets use a single knob to control hot and cold water.

Step 4 Remove valve stem Remove the valve stem if you have a compression faucet with an adjustable wrench. If the stem is recessed, use a stem wrench to remove it.

Step 5 Get replacement parts Take any damaged parts to a hardware store. Make sure you get the right replacements.

Step 6 Replace damaged parts Replace the damaged parts, reassembling the faucet valve with the new parts in the opposite order in which you took it apart.

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