Few people escape the annoying “drip, drip, drip” nose coming from their kitchen faucet. Perhaps, you cannot take that noise anymore and need to fix it. If you have not performed any plumbing work before, repairing your kitchen sink faucet handle does not require any special plumbing skills. Determine which faucet type you have in your kitchen before attempting to perform any DIY kitchen faucet repair work.
Water pump pliers
Turn off your water to your kitchen sink at the supply tubes before disassembling your faucet.
Remove the index cap from the faucet handle, by prying it up gently. These typically have the marking “H” or “C” on them, to represent hot and cold. Remove the handle screw with your screwdriver. Remove the handle by pulling it straight up. If the handle does not life off gently, remove it with a handle puller.
Unscrew the stem assembly –the metal piece sticking up–from the body of your faucet with your water pump pliers. Inspect the valve seat for wear and tear, and replace if needed. Feel around the rim of the valve seat with your finger for any damage. Replace the valve seat if it has flat edges. Double-check the valve seat by looking into it with a flashlight.
Remove the brass stem screw—located on the bottom of the stem assembly– with your screwdriver. Remove the worn washer located under the brass stem screw.
Unscrew the threaded spindle on the brass stem assembly from the retaining nut.
Cut off the O-ring with your razor knife, and replace with a new O-ring. Install a new washer and stem screw. Coat all the parts on the stem assembly with heatproof grease.
Screw the retaining nut back onto the threaded spindle and screw the brass stem screw back onto the stem assembly.
Screw the stem assembly back into the body of the faucet.
Place the faucet handle back on the body and screw the faucet handle back in place.
Replace the faucet cap, and turn your water back on at the supply tubes. Test for any leaks or drips.