Repair a Kitchen Faucet
Note the location of the leak or leaks to help you choose the correct fix. Is water dripping off the spout? Is it seeping from the spout’s base or at the handle?
Then, turn the shutoff valves beneath the sink and place a rag in the sink’s drain so tiny parts won’t be lost. As you disassemble the faucet, take notes or digital images of the process and parts’ placements to ensure you correctly reassemble the faucet. Set aside worn parts to take them with you to the hardware store. Wipe valves clean. Soak mineral-crusted parts in vinegar.
While You’re Out
Shop for faucet repair kits designed for your type of faucet. They generally include O rings, a small tool or two, and style-specific replacement parts such as a ball valve, stems and washers, or a cartridge. Pick up a tube of plumber’s silicone grease to make slipping on new seals easy. You might want to buy a universal O-ring kit so you have a range of seals to draw from. Other tools you might need include a small Allen wrench set, screwdrivers, slip-joint pliers, needle-nose pliers, and a utility knife.
Solve the Problem
Kitchen faucet repairs fall into four categories with slightly different fixes for each.
1. Water-flow problems. Mineral deposits or other gunk might build up and block water flow. Use a screwdriver to gently chip away debris; turn water back on to flush out the dirt. Reassemble the faucet, and turn on water to check flow. Still sluggish? Remove the aerator at the spout’s end; soak in vinegar; and clean with a toothbrush.
2. Drips at the spout’s end. For a ball valve faucet, replace the seats and springs, tighten the adjusting ring, and replace worn O rings. If it’s a cartridge-style faucet, remove the cartridge and replace the O rings on the cartridge. Ceramic disk faucets rarely leak, but if they do, replace cartridge seals and O rings. For compression/stem faucets, replace washers; if leaking persists replace the seat and the stem.
3. Leaky handles. For single-handle washerless faucets, remove the handle and gently tighten the cap/adjusting ring to which the handle connects. For compression faucets, remove handles and replace O rings.
4. Leaks at the spout’s base. Remove the spout, replace all O rings, and clean valves.
If you can’t fix your faucet, it’s time for a replacement. Choose a faucet compatible with your sink’s existing cutouts to make installation easy. Check how many holes are in your sink by looking at the sink from below; standard faucets require one to three holes. Depending on the number of holes, you might be able to install a sprayer, soap dispenser. or other components. If you want a more extensive upgrade, replace the sink, too, and buy a new model that has the number of cutouts needed to accommodate your preferred faucet and configuration of add-ons.