The old mounting hardware was so badly corroded that I had to cut it off in
order to remove the old fixture. But I share your concern about the basin,
and may give your second suggestion a try. Thanks!

"Berkshire Bill" wrote in message
...

"PE" wrote in message
...
Hi all: Request advice re. problem I've encountered while replacing
faucet
in bathroom vanity. The valves and spout are mounted in the countertop,
and
the basin in front of them is an undermount variety. I removed the
basin
for easy access to the faucet hardware, but when replacing the basin
after
installing the new fixtures, I discovered that the rubber/metal washer
that's under the counter and at the base of the new spout apparently has
a
larger diameter than the one it replaced, and it prevents the flange
around
the top of the undermount basin from snugging up against the underside
of
the counter. There's insufficient space to move the basin forward, so
the
only option would seem to be, if possible, to remove a semi-circle of
material approx. 2" across and 1" deep from the basin flange in order
for
the same to be able to clear the spout washer. Would appreciate any
advice
whether it's possible to do so without cracking/ruining the basin and,
if
so, best method and tool(s) to use. Also any ideas for alternative
work-around. Would like to keep the new hardware if I can and would
rather
not buy a new basin. Thanks for your replies!



It's probably better to use the old mounting washers against the new
fixture. Or you could grind or nibble a section off the new mounting
washer. I would be a little cautious about modifying the mounting ring
for
the lavatory. Any cutting or grinding is asking for deformity and a poor
fit, and those flanges are not easy to find.

Happy modeming,
Bill