This feels more like interactive animation, than the game. Which might have been the point of this entry. But it does what it says in description. Shows you how water treatment works (or more likely how the water gets from rain, to water tap in house).
There were som funny quirks tho. Sometimes when I clicked Filter, it will fill by rainwater tank to 200% and without any button press it rose to 300% and finally 400%.
SFX / ambient audio is really missing here.