Just adding the theory below for completeness. Search in the article for the part about the ISS: http://www.unz.com/ishamir/toilet-wars/ http://www.unz.com/is

Just adding the theory below for completeness. Search in the article for the part about the ISS: http://www.unz.com/ishamir/toilet-wars/ http://www.unz.com/ishamir/toilet-wars/