I'm too late but couldn't resist the following.
Kev you can't spell seized and bath taps aren't 1/2 or 15mm they are 22mm or 3/4 so I hope he didn't go out and buy then as your name would be mud,,they are the largest taps in dwellings because of the volume needed to flow through otherwise it would take ages for a bath to fill. Your reply should have been remove the centres and replace with universal 3/4 or 22mm tap centres that have various size collars to fit the several types. I suggest Kev you have a dikshonary beside you when you next put forward a suggestion.
bob, August 2005