Water treatment plant comes to mind, but to be fair that is not too far from the truth, planning laws in the UK now state that any new water ride has to have a water treatment plant to clean the water, separate from any other water supply. The days of using ponds and lakes are over which the Congo river rapids and storm force 10 both use (remember the fountain at the end of the congo rapids shooting into the boat, this used to be pumped from the ride but you are not a loud to do this any more!) But lets be honest with the colour of the splash on draytons its amazing we all do not develop some strange mutations!.
I have heard that more themeing is to be added but I am hoping for a lot more than that the steal work needs to be hidden with mock wooden structures, alot more detail in these elements, maybe some tunnels with special effects but with the placement of the bone cage and ice area I can not see the sides being disguised all that much which is a real shame.
One thing that really annoyed me was the bolting on of CCTV cameras on the ride station no attempt at all has been thought about the final appearance from the look of that.