Ten million dogs can't be wrong

http://blogs.kqed.org/climatewatch/2011/10/30/toilet-to-tap-water-recycling-might-be-in-your-future/

and

http://www.nytimes.com/2012/02/10/science/earth/despite-yuck-factor-treated-wastewater-used-for-drinking.html?pagewanted=1&hp