You could remove the tap valve and try fitting a new washer.
If it's a basin you'll need a 1/2" washer. It may just be a standard flat type washer but the washer type/shape can vary depending on the tap type you have so you'll need to take it apart first.
Are you in a hard water area? If that pic's anything to go by you'll need some serious limescale remover before you start.
Depends on the valve ,they vary .You would have to remove it to find out.
Get tap revivers as stated above. Much simpler. although my preferred method would be replace the taps as them type are dirt cheap and you’d do it in the same to replace the washers.
swan basin taps
your right the tap is drippy again
aha i don't blame you! what are the decent ones out there?Its what we try and convince customers of all the time...i wont repair (cheap) taps anymore as when they start leaking again (as you have discovered), we're expected to come back FOC!
will the tap revivers do the job?Its what we try and convince customers of all the time...i wont repair (cheap) taps anymore as when they start leaking again (as you have discovered), we're expected to come back FOC!
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