wrote:

Help! I could kick myself! I've drilled the tap holes in my new bath
too far back. Does anyone have any ideas how I could fill the holes
and start again?

If it is fiberglass or acrylic get a gelcoat repair kit from a chandler
or from an online supplier. To fill the holes, put tape over the back of
the hole and fill to within a few mm of the surface using a grp
reinforced polyester resin filler.

Then fill the last few mm using the gelcoat repair kit. This can be
sanded flat using wet and dry paper and then needs polishing to get a
high gloss finish.

http://www.svsp.co.uk/Shop%20Website...epair_kits.htm

http://www.sailboats.co.uk/ProductIn...ductid=BG87001

Be warned, sailors soon learn there are many shades of white and getting
an invisible repair takes a heck of a lot of work.