Come on all you experts. How do you drill a 1" hole in tiles to pass a shower feed pipe through. Is it a series of small holes or is there an easier way. Thanks all for your help. Graham.
[Please is it workable to use 15mm piping in the installation of a new bathroom radiator when the rest of the system uses 8mm piping, and will this affect the Combi boiler pressure in any way. Thanks. Graham.
