I`m installing a power shower enclosure, the problem I have encountered is that it is impractical to alter the current waste pipe to the soil stack, and the bottom of the shower waste pipe is approx. 15mm lower than the soil waste. (Even with tray legs fully extended). I am hoping to avoid the £200 or so cost of a shower macerator. Can anyone suggest what I could use to support the tray to raise it further to give me the "run" I need, yet without spoiling the look at the front of the tray. (Tray is the quadrant type).