Still types include large scale concentrated solar stills and condensation traps. In a solar still, impure water is contained outside the collector, where it is evaporated by sunlight shining through a transparent collector.OverviewA solar still with substances dissolved in it by using the to evaporate water so that it may be cooled and collected, thereby purifying it. They are used in areas where drinking water is unavailable. . Condensation traps have been in use since the pre- peoples inhabited the . In 1952, the United States military developed a portable solar still for pilots stranded in the ocean. It featured an inflatable 6. . A collector is placed at the bottom of a pit. Branches are placed vertically in the pit. The branches are long enough to extend over the edge of the pit and form a funnel to direct the water into the collector. A lid is then built o.
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