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Plumbing

How to Fix a Leaking Tap

Quick Answer

Turn off the water supply, replace the washer or cartridge, and reassemble the tap.

How to troubleshoot a Leaking Tap

A dripping tap wastes water and money. This guide covers fixing the most common causes of a leaking tap.

Step-by-Step Fix

  1. Turn off the water supply to the tap using the isolation valve.
  2. Remove the tap handle by unscrewing the set screw or cap.
  3. Use a spanner to unscrew the valve nut and remove the spindle.
  4. Replace the rubber washer or ceramic cartridge with an exact match.
  5. Reassemble all parts in reverse order and turn the water back on to test.

Common Error Codes

CodeMeaningResolution
Drip after closeWasher not sealing properlyReplace the rubber washer with a new one of the correct size.

Frequently Asked Questions

How do I know which washer to buy?

Take the old washer to a hardware store to match its size, type, and thickness.