The majority of dripping taps can be solved by simply replacing
the washer (see Replacing
the washer in a tap or Replacing
the washer in a reverse-pressure tap). This should be
done promptly to avoid unsightly stains on sinks/baths because
the problem will get worse and the seating of the taps will
require replacement.
If the leak is occurring from around the spindle of the
tap or the tap is juddering during use then this can often
be resolved by replacing the gland packing or O-ring seals
in the tap. See Replacing
O-rings and Gland packing.
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.
See Reseating a tap.
Still Dripping
Some older taps which are brass, may suffer from old age
by developing cavities and becoming porous. If this is the
case then the taps will require changing.
See Fitting new taps for more details.