Vent, Valve & Volt
Valve: Plumbing

Faucet dripping when it's off

A faucet that drips with the handle off almost always has a worn sealing part inside: a cartridge, a stem and seat, or seats and springs. Four quick questions narrow it to the part you need.

Also searched as: faucet dripping when off, faucet dripping from spout, faucet dripping from handle, tub faucet dripping when turned off.

A hand held under a chrome bathroom faucet catching a single drip
A single-handle faucet with one cartridge under the handle, beside a two-handle faucet with a stem and seat under each handle. one handleone cartridge does flow and mix two handlesa stem over a seat on each side
One handle or two: what is inside
Every question and answer on this page, in order

Question 1: How many handles does the faucet have?

Count the handles you turn, not the spout. A single lever that lifts and swings is one handle.

Question 2: Where does the water come from?

Watch it for a minute with the handle off. Dry the base with a towel first so you can tell spout from handle.

Question 3: Which side is dripping?

Shut off the hot stop under the sink and wait a minute. If the drip stops, it is the hot side. Reopen it and try the cold stop the same way.

Question 4: Is it a kitchen faucet with a ball-shaped joint under the handle?

Some single-handle kitchen faucets, including many older Delta models, use a rotating ball on seats and springs instead of a cartridge.

Question 5: Do the handles turn a quarter turn, or several full turns?

Quarter-turn handles usually hide a ceramic disc stem. Handles that screw down several turns are compression stems with a rubber washer.

Possible results

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