As I’ve said, I’m happy that the builder, plumber and tiler knew what they were doing. The main question raised seems to be over the latex on the Ditra before tiling, which the tiler said he normally did. I’m hoping therefore that you guys don’t try to convince me that I’m sitting on a ticking time bomb. I guess I’m really after opinions as to whether it’s worth trying the Fix-A-Floor Repair Adhesive. It really is only a few tiles loose, out of an 82 sq M floor.