I am aware that tiling over topping compound is a big no-no, but is the same applicable to the pre-mixed multi purpose jointing compound? It's a small area behind a toilet which I now want to tile over.
If I can't do this then any remedies for the situation? This jointing lark has been the hardest bloody part of the whole bathroom reno and I'VE HAD ENOUGH!!
(Rod are u out there???!)