Evaporation-based Water Purifier Cone

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When you evaporate and condense water, the condensed water is 100% pure water. This means the purified water is completely safe to drink, as nasty chemicals and bugs do not evaporate with the water. The WaterCone is a very simple gadget that purifies water by the process of evaporation.

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Source

http://www.envirogadget.com/wp-conte...on-300x229.jpg

I remember learning how to make a solar still in Boy Sprouts back in the late 70s...same tech, but not as fancy.

One problem I see is you set your "clean" portion of the device into "dirty" water. There is chance for cross contamination.

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Originally Posted by TFOGGER

I remember learning how to make a solar still in Boy Sprouts back in the late 70s...same tech, but not as fancy.

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Coffee can, plastic sheet and a rock... right?

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Originally Posted by Colorado Osprey

Coffee can, plastic sheet and a rock... right?

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Yup, and a hole in the dirt. put pieces of cactus and stuff under the plastic to increase the yield