Locate the main water shutoff valve and turn it off to prevent water flow during repair.
Open the faucet handle to release any residual water and prevent splashing.
Use a screwdriver to remove the handle screw and carefully lift off the handle.
Use an adjustable wrench to loosen and remove the packing nut holding the cartridge or valve stem.
Carefully pull out the cartridge or valve stem, noting its orientation for reassembly.
Inspect the washers and O-rings for signs of wear, cracks, or damage; replace if necessary.
Apply a thin layer of plumber's grease to the new washers and O-rings for a better seal.
Reinsert the cartridge or valve stem into the faucet body, ensuring correct orientation.
Screw the packing nut back on and tighten securely with the wrench, avoiding over-tightening.
Reattach the handle and secure it with the screw.
Turn the main water supply back on slowly and check for leaks around the faucet.
If leaks persist, recheck all connections and replace additional worn parts if needed.
Clean the work area and dispose of old washers and damaged parts properly.
