Thanks for the reply, I'm clutching at straws / looking for a miracle - I know that.
Shower tray has been slowly leaking for years (having inly just discovered it), have had to break 6 tiles, (saved 2 now) - to re-work the mess & rot. Re-tiling the whole bathroom (& probably replacing the suite as a result) is out of the question - but so is not having a shower!
Appreciate the response again anyways.
I do have some plain white mosaic remaining (from 2007/2008) - which will have to suffice & just look odd :-(