Just pricing up my own ensuite. The quote includes a 'tile safe' tanking kit - £300 and flexi wall membrane 8kg - £60 I don't mind the cost if it's worth it, but just want to check with those in the know if this stuff is good & worth the £360? Are there any brands you would recommend? Or am I missing something, is this 'tile safe' superior than others? Cheers again!