Although I have known about this for a considerable amount of time, there has always always been something I have wondered about regarding the lagoon water. Is it filtered each time an attraction is filled? I am concerned about those parasite/amoeba things that enter the body through the nose or ears or cut and eat your brain to pieces.
While I know those critters bury in the muck on the bottom, I know there are carp and turtles in the lagoon that must stir up the bottom often.
So, if not the rapids water, I would expect the water effects such as the falls and squirts would be. I doubt anyone here knows the answer to this.