TL;DR: To fix a leaky faucet, first shut off the water supply and disassemble the handle to identify the worn washer or cartridge. Replace the faulty part with an exact match, reassemble the components carefully, and turn the water back on to check for leaks.
Fixing a leaky faucet is one of the most rewarding beginner plumbing projects. It saves money on water bills and prevents potential water damage. You do not need professional tools or extensive experience to complete this task successfully. With a few common household items and a bit of patience, you can restore your faucet to perfect working condition in under an hour.
Gather Your Tools
Before you begin, ensure you have the necessary supplies. You will need an adjustable wrench, screwdrivers (both flathead and Phillips), replacement washers or cartridges, plumber’s grease, and a cloth. It is crucial to identify your faucet type first, as ball, compression, cartridge, and ceramic disk faucets require different repair kits. Take a photo of your faucet before disassembly to help with reassembly.
Step 1: Shut Off Water and Remove Handle
Turn off the water valves under the sink. If no valves exist, shut off the main house supply. Plug the drain to prevent small parts from falling in. Pry off the decorative cap on the handle using a flathead screwdriver. Remove the screw securing the handle and lift it off. You may need to gently wiggle it if it is stuck.
Step 2: Disassemble and Inspect
Use your adjustable wrench to remove the packing nut. Carefully lift out the stem or cartridge. Inspect the rubber washer at the bottom of the stem. If it is cracked, flattened, or eroded, it is the culprit. Also, check the O-rings on the stem for signs of wear. Clean any mineral deposits from the internal components using vinegar and a soft brush.
Step 3: Replace Parts
Take the old washer or cartridge to a hardware store to ensure an exact match. Insert the new washer into the stem, ensuring it sits flush. Apply a thin layer of plumber’s grease to the O-rings and the new washer to ensure a smooth seal and prevent future sticking. Reinsert the stem into the faucet body, aligning it correctly with the slots.
Step 4: Reassemble and Test
Screw the packing nut back on tightly but do not overtighten, as this can damage the threads. Reattach the handle and secure it with the screw. Replace the decorative cap. Turn the water supply back on slowly. Turn the faucet on and off several times to check for leaks. If water drips from the spout, the washer may not be seated correctly. If it leaks from the handle, tighten the packing nut slightly.
Expert Tips for Success
Always work slowly and methodically. If a part is stuck, do not force it; use penetrating oil to loosen rust. Keep a small container handy for screws and nuts to avoid losing them. Regular maintenance, such as replacing O-rings every few years, can prevent future leaks. If the leak persists after replacing parts, the faucet body may be cracked, requiring a full replacement.
FAQ
Q: How long does it take to fix a leaky faucet?
A: It typically takes between 30 to 60 minutes for beginners, depending on the complexity of the faucet design and whether parts are easily accessible.
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Q: Do I need to turn off the main water supply?
A: Usually, shutting off the local shut-off valves under the sink is sufficient, but if those are missing or broken, you must turn off the main house supply to stop water flow.
Q: What should I do if I cannot find the exact replacement parts?
A: Take the old parts to a hardware store for a visual match, or consider replacing the entire faucet if the model is obsolete or parts are unavailable.
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