The idea of waste, of something unusable, reveals an incomplete understanding of how things work.
Nature admits no waste.
Perhaps other cultures know this better than we, for they have no concept of, no word for, waste. Scores of happy users, dating as far back as 1976, write and call to tell us how well Sun-Mar composting toilets work. They require no septic system, use no chemicals, and produce no pollutants. It only takes about a week for this system to naturally compost human waste - almost 100 times faster than a septic system. No wonder they received a Gold Medal for best invention at the international Environmental Exhibition in Geneva, Switzerland.