Puralytic: Solar Bag Technology for Water Purification - 0 views
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Aimee Coulombe on 26 Nov 13Is it possible for the sun to provide the only source of power for a complete water purification system in a portable bag? Until now we would not give the idea much thought. But why not? We make "sun tea" where you put tea bags in a container of water and place the container outside in the sun to naturally brew the tea.