Most drips come from worn O-rings, washers, or cartridges.
- Always shut off the water supply before disassembling the faucet.
- Regular cleaning and replacing rubber parts every few years prevent drips.
Why Is My Kitchen Faucet Dripping? Common Causes
A dripping faucet usually means a worn internal part. The most common culprit is a deteriorated O-ring or washer. These rubber seals wear out over time due to friction and water pressure. A corroded valve seat can also cause drips. Mineral buildup from hard water can damage the cartridge. Sometimes the faucet itself is loose, causing leaks at the base. Identifying the exact cause helps you choose the right fix.
How to Fix a Dripping Kitchen Faucet: Step-by-Step Instructions
First, turn off the water supply valves under the sink. Open the faucet to release remaining water and pressure. Plug the drain to avoid losing small parts. Use a screwdriver or Allen wrench to remove the handle. Depending on the faucet type, you'll see a cartridge, ball, or ceramic disc. Remove the retaining clip or nut to pull out the internal mechanism. Inspect it for wear or mineral deposits. Replace any damaged O-rings, washers, or the entire cartridge. Reassemble in reverse order, then turn the water back on and test for drips. If the drip persists, the valve seat may need regrinding or replacement.
How to Prevent a Kitchen Faucet from Dripping Again
Regular maintenance prevents most drips. Clean the aerator monthly to remove mineral buildup. Avoid overtightening the handle, which stresses seals. Replace washers and O-rings every few years as preventive care. If you have hard water, consider installing a water softener. Fix any leaks promptly to avoid further damage. Lubricate moving parts with plumber's grease during reassembly.
When to Replace Your Kitchen Faucet Instead of Repairing It
If the faucet is over 15 years old, replacement may be more cost-effective. Extensive corrosion or cracks in the body mean repair is not viable. Frequent leaks despite new parts indicate a failing valve seat. If parts are hard to find for an older model, replacement is simpler. A pro can help if you're uncomfortable with DIY repairs. Also, consider upgrading for better water efficiency or style.
When to Call a Professional Plumber for a Dripping Faucet
Call a plumber if you can't identify the faucet type or lack the right tools. If the water supply valves won't shut off, you need professional help. Persistent leaks after DIY repairs warrant a pro's diagnosis. For complex faucets like pull-down or touchless models, professional service is safer. If you notice water damage or mold, address it immediately with expert assistance.