I am a forum member (who trained and started to give it a go a few years back) who had to give up tiling due to a knee operation which made it impossible to continue professionally, but follow the posts as I still have a great respect for the profession. However, I am going to do my new bathroom as I have time and the desire but have a few questions if I may ! I will be tanking the shower area (Its Aquapanel around the shower area plasterboard the rest) and intend to use a good adhesive on the walls such as Whitestar or Weberfix WR (only because I used these before). Tiles are 600x300 ceramics. Q1 - for the plasterboard areas do I need to prime if I use either of the above adhesives. Q2 - Di I need to back butter tiles of this size and type or just use the correct notched trowel ? Your advice would be great and much appreciated ! Thanks !