Hmm, people in developing countries have been doing this for years, using nothing more than PET bottles. This is called SODIS, and is recommended by the WHO as a viable method for water treatement.
What's the point of producing a product that's targeted at people who barely have enough for food, and already have a viable, just as good, free alternative?
01/13/09
What's the point of producing a product that's targeted at people who barely have enough for food, and already have a viable, just as good, free alternative?