Easy enough to replace the plug, but if the sink is by ideal standard, and
has the lift up plug via a rod through the taps, the pillocks at the ideal
standard place will claim the plug comes only with the taps!!!
the ones at my parents house have lost their chrome from the outsides
inwards, never used bleach, but found the culprit, my brother used to pour
his half finished cans of fizzy pop down the sinks upstairs, and that's
taken the chrome plating off, good stuff coca cola for cleaning and removing
stuff, i used it to clean badly corroded battery terminals one year in my
motorhome, it makes a toilet sparkle, does wonders for the wheels of my
motorbike, but if you leave it to sit like it will round a plug hole, it'll
eat the plating away.