How much clean water does the average person waste?

Answer 1

None. All the water is still on the planet, and waste treatment plants do not fare well on "pure concentrated evil". The bacterial colonies that convert "poop" to soil don't work well / fast with high concentrations of contaminants. Conserving water is only an issue because we "won't" drink water that someone else has passed through their urinary or excretory systems. Despite the fact that in our bodies are water molecules that have done exactly that. So the waste comes about when we require this water to go to the ocean, evaporate, and fall down as rain again. And the issue ("saving water") is raised by the government employees that have to supply us with water from "virgin" (hah!) sources.