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Reseating a tap

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If a tap continues to drip once the washer has been replaced then it will probably require reseating. Reseating is required because grit or general wear and tear, has caused the seating to become worn, this can be remedied by reseating the tap.


Dismantle the head of the tap. If the tap has a metal cover then this needs to be removed - be sure to protect the taps surface from any tool, ideally unscrew by hand. A block of wood to support the spout can be quite useful for opposing any forces applied with a spanner. Reseating can be achieved by actually grinding the tap or by replacing the seat with a substitute.

Reseating the tap

1. Remove the head of the tap including the washer leaving the base and spout. 2. Screw the reseating tool into the body of the tap and alter the tool until it is in contact with the seat. 3. The tap can then be reseated by turning the tool to grind down the seat. 4. To check if the grinding is complete, look at the grinding disc, if black marks are observed then the seat requires more grinding, when they disappear completely the tap is sufficiently ground. 5. Reassemble the tap in reverse order to complete the job.

Replacing the seat

To replace the seat of a tap, obtain a nylon seat with jumper and washer from your local DIY store. The new nylon seat should then be placed over the old seat and the jumper and washer should be fitted in place of the old ones. The tap should then be reassembled and closed as fully as possible, this will ensure the new seat has been fixed in position correctly.

Related pages

Plumbing > Repairing a leaking tap Plumbing > Replacing a washer in a tap Plumbing > Replacing a washer in a reverse pressure tap

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