Thanks for your replies.
This wetroom has a leak. The walls of this wetroom are completely fitted with split face tiles. They are not grouted. I wouldn't have expected them to be. There are gaps between the pieces of tile on the split face. The room has allegedly been tanked using an impey system. The leak has already been 'repaired' three times, tiles removed, tanked, fibreglassed,tiles refitted, etc, but there's still a problem.
The shower head is of the soaker variety and my thoughts are that the water is getting between the split face tiles and in behind and then finding it's way into the ceiling below, probably through the corners of the walls.
The client is minted and says 'just fix the leak'.
Any thoughts ?
Lewie