One drip per second is 3,000 gallons a year — literal money down the drain, plus the slow insanity of the sound. Inside the handle is a $2–$15 part (a cartridge, washer, or seal) that takes half an hour to swap. The whole trick is matching the right part, and there's an app for exactly that.
Not sure this is your exact problem?Point your camera at it — SpotFix AI diagnoses it free in seconds, with a step-by-step AR guide for your exact model.
Scan It FreeTwo small oval valves — clockwise closed. No valves or they're frozen? Shut the house main. Open the faucet to bleed pressure.
A sink plug or rag. Every faucet repair involves one tiny screw that wants to live in the P-trap.
Pry the decorative cap, remove the screw beneath (often an Allen), pull the handle. Stubborn handles pull straight up with gentle rocking.
Remove the retaining nut or clip and pull the cartridge. Take a photo first — orientation matters on reassembly. Scan the cartridge with SpotFix AI to match the exact replacement (Moen 1225, Delta RP19804, etc.) instead of three trips to the store.
Compression faucets: replace the rubber washer and O-rings. Ball/ceramic types: swap the springs and seats in the kit. Smear a little plumber's grease on O-rings.
Hand-snug, don't gorilla the retaining nut. Open the supply valves slowly, then run both temperatures. Silence. Enjoy it.
50,000+ repairs diagnosed · 92% accuracy · users save $420 on average. Free on iOS.