I know it says its self sealing but I am not sure yet I trust a system that you put screws through into the floor. I do like the steel tray under the former though. On balance I think it will probably be a wedi type system I go with. Got the whole sub structure to build so will probably take a load of pics as I go and will undoubtedly need more advice as I go....just had a look at the aqua4ma and looks like an easy fit but i don't like systems without any sub-tile water escape or weep holes.
Reply to the thread, titled "Gonna build a wetroom" which is posted in Tanking and Wetrooms on Tilers Forums.