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Inspect the valve stem you just removed. At the very bottom, there will be a rubber seat washer held on by a brass screw. This is the most common cause of a spout drip. Use a flathead screwdriver to remove this screw and the old washer. Replace it with a new seat washer of the exact same size. Also, examine the O-ring(s) on the body of the stem. If they appear flattened, cracked, or brittle, they should be replaced. Pry the old O-ring off with a small pick or screwdriver and roll the new one into its groove. Before reinserting the stem, apply a small amount of plumber's grease to the new O-ring(s) and the stem threads to ensure a smooth operation and good seal.

You're viewing a step from: How to Stop a Dripping Two-Handle Faucet

Beginner

30 minutes

2/4 Inventory

This guide provides step-by-step instructions for fixing a common drip in a two-handle faucet, which is typically caused by a worn-out rubber washer or O-ring. The process involves turning off the water, disassembling the handle that is causing the drip, replacing the internal seals, and reassembling the faucet.

Based on content fromEveryday Home Repairs· 1.1M subscribers

Frequently Asked Questions

Do I need the specific brand-name tools listed, or can I use generic alternatives for this faucet repair?

No, specific brands are not strictly necessary. A basic set of screwdrivers (Phillips and flathead), an adjustable wrench, and a pair of pliers are usually sufficient for this project. The listed tools are recommendations for quality and ease of use, but common household tools will often suffice.

What is the absolute most important safety precaution I should take before starting this repair?

The most critical step is to completely shut off the water supply to the faucet before any disassembly. This usually involves turning the shut-off valves under the sink clockwise until tight, then confirming the water is off by turning on the faucet.

As a beginner, how much time should I set aside for this project, and what's the typical cost involved?

For a beginner, expect to spend about 30 to 60 minutes on this repair. The cost is typically very low, usually under $10-$20 for replacement washers, O-rings, and plumber's grease, as the main components are inexpensive.

I replaced the washer and O-ring, but my faucet is still dripping. What could be the problem?

If the drip persists, carefully inspect the valve seat for corrosion, nicks, or debris after removing the stem again. A damaged valve seat often needs to be cleaned or replaced, or the new washer/O-ring might not be seated properly or is the wrong size.