Guide
How to approach a leaking faucet
A dripping faucet usually points to a worn seal, cartridge, washer, valve component, or connection; identify the faucet type before buying replacement parts.
At a glance
- Before repair
- Shut off the fixture water supply
- Why leaks matter
- Small leaks can waste substantial water over time
Overview
Faucets use different internal mechanisms, including cartridges, ceramic discs, compression washers, and ball assemblies. A repair that works for one design may not fit another. Before disassembly, shut off the appropriate water supply and confirm the fixture is no longer pressurized.
Identify the faucet design
Find the manufacturer and model if possible, or inspect the handle and cartridge arrangement after safely shutting off water. Matching replacement parts by exact cartridge or valve style is more reliable than choosing by appearance alone.
Check the whole connection
A drip from the spout and water leaking around the base are different failures. Inspect supply lines, shutoff valves, seals, and mounting areas for moisture so a hidden connection leak is not mistaken for a simple worn cartridge.
Sources and review
MOOR's explanatory text is supported by the following source links.
- Fix a Leak Week — U.S. Environmental Protection Agency
- Residential Faucets — U.S. Environmental Protection Agency