What's in the water?

When you think about it, water systems are amazing: People in countries across the developed world just turn a faucet and receive a seemingly endless supply of clean water. But how clean is it, actually? Tune in to learn more. Join Ben and Matt to learn the Stuff They Don't Want You To Know about everything from ancient history to UFOs, government secrets, and the future of civilization. New videos every Monday, Wednesday and Friday. Watch More Stuff They Don't Want You To Know on TestTube http://bit.ly/1hUVM7n STDWYTK Audio Podcast on iTunes: http://bit.ly/1hZ9XIH STDWYTK Audio Podcast RSS Feed: http://bit.ly/JwSkRE Please Subscribe to Stuff They Don't Want You To Know http://bit.ly/JnDY69 Watch More http://bit.ly/JwSj01 Twitter http://bit.ly/JnE0e6 Ben on Twitter http://bit.ly/1hUVJIK Facebook http://on.fb.me/JnDZXG Google+ http://bit.ly/1hUVJIM