Leaking Faucet or Valve — What To Do When the Drip Won’t Stop

ByMichael Davis

A dripping faucet can drive anyone crazy. That constant plink, plink, plink wastes water, raises your bill, and sometimes hints at a bigger problem. Before you grab a wrench, here’s what you should know — and what you can safely do before a plumber steps in.

Step 1: Don’t Ignore the Drip

It may look harmless, but even a slow drip can waste hundreds of gallons per month.
Over time, it can cause rust, limescale, and even damage the sink surface.
So yes — it’s worth acting sooner rather than later.

Step 2: Identify Where It’s Leaking

Common sources:

  • Faucet handle — usually a worn-out O-ring or cartridge seal

  • Spout tip — internal washer or valve seat worn down

  • Shut-off valve under the sink — packing nut or compression joint leaking

Use a towel to dry everything, then watch closely to see where the first drop forms.

💡 Tip: If water leaks only when the faucet is on — it’s probably the cartridge or washer. If it leaks even when off — it might be the valve or a crack in the fixture.

Step 3: Try a Temporary Fix

  • Tighten the handle cap or packing nut slightly (don’t overdo it).

  • Turn off water under the sink and open the faucet to release pressure.

  • If you feel comfortable, remove the handle and inspect the O-ring or cartridge — often, replacement parts cost just a few dollars.

❗ Never use excessive force — it’s easy to damage soft brass fittings.

Step 4: For Leaking Valves

If water seeps around a shut-off valve (under sink or behind toilet):

  1. Use a wrench to slightly tighten the packing nut.

  2. If that doesn’t help — turn off the main water and replace the valve.

  3. For old corroded valves, it’s best to call a plumber — they can replace it without damaging the line.

Step 5: When to Call a Plumber

Call a professional if:

  • The leak continues after tightening or replacing small parts

  • You see corrosion, rust, or cracks

  • Water is leaking from behind walls or under the sink cabinet

How to Prevent Faucet Leaks

  1. Avoid over-tightening handles.

  2. Replace washers or cartridges every few years.

  3. Clean aerators and spouts from limescale regularly.

  4. Inspect shut-off valves annually for corrosion.

Small leaks have a sneaky way of turning into big problems. Fixing them early — or even knowing what to do while waiting for help — saves water, money, and stress. Stay calm, stay dry, and let the pros handle the rest.

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