Comment Re: So they basically are (Score 1) 27
I don't think anyone expected water exposed to the atmosphere in a waterfall like fashion to be re-added to the public water supply. I'm curious where you live that you haven't seen evaporative cooling in person. Maybe you live in Norway or Iceland. The water that doesn't evaporate is recycled, and when the resivor drops below level X, it adds more municipal water to the system. I hope this clears some things up for you about 100 year old cooling system design