How to replace a tap washer
⚠️ Always turn off the water supply before starting.
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Turn off the isolating valve under the sink (or the main stop tap). Open the tap to drain remaining water.
Prise off the decorative cover cap on the top of the tap handle.
Unscrew the retaining screw beneath the cap and lift off the tap handle.
Use an adjustable spanner to unscrew the headgear (the hexagonal brass nut below the handle). Turn anti-clockwise.
At the bottom of the headgear, you'll find the rubber washer — replace it with a matching size.
If the seat (the brass ring the washer presses onto) is pitted or damaged, regrind it with a tap reseating tool or replace the headgear entirely.
Reassemble in reverse order. Turn on the supply slowly and test for drips.
🛠 Tools & materials you may need
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