Hi, Can anyone help? I have purchased an Impay aquadeck wet room shower tray former for my wet room. I have also purchased their decoupling membrane that I will be fitting over the tray and all around the showering area. I have schluter ditra matting for the remainder of the bathroom floor. So that I can keep the 2 areas at the same level, is it okay to lay some schluter ditra matting over the decoupling membrane on the shower tray and then tile over this? or is the schluter ditra not designed for use on the wet room shower trays. I know that I cannot lay the schluter ditra directly to the aqua deck as you cannot apply tile adhesive directly to the tray, the membrane has to be applied first. Any advice appreciated.