http://www.youtube.com/watch?v=YV-1To9DkJQ
Ecological Sanitation is an important new approach to sanitation, which is truly sustainable. It uses almost no water in its operation, and human waste produ…
http://www.youtube.com/watch?v=YV-1To9DkJQ
Ecological Sanitation is an important new approach to sanitation, which is truly sustainable. It uses almost no water in its operation, and human waste produ…