On Tue, 30 Apr 2019 17:50:03 GMT, lid (AnthonyL)
wrote:

1960's build and probably the original basin and bath pillar taps.

The 1/2" basin tap has a flat washer of 13/16" (20mm) dia.

The 3/4" bath tap has a flat washer of 1 3/16" (29mm) dia.

Been to two plumbing merchants, one very much old school, and nothing
near.

Both taps were dripping or have to be tightened such that they can't
be loosened by normal mortals and I guess that is because they
struggle after the house was converted from a hot water tank in the
loft to mains pressure on the combi. The cold taps are still from a
header tank.

I've temporarily got around the problem by:
a) Turning the basin washer around

So as per subject, I can't be the only person in the UK with these old
taps, where do I get suitable new washers?

b) Gently filing the bath washer flat

You'll probably find that the seating that the washer screws down on
has grooves caused by years of grit in the water, so you might have to
grind them down, in such a way to get rid of the grooves without
widening the radial area of contact if possible.
--
Dave