Monday, March 12, 2012

How to make a Solar Still

This is awesome for sure!

A solar still can help you collect drinking water.
Another way to collect water is to make a Solar still. To do this, you'll need some plastic sheeting or a poncho, a digging tool, a container and a rock.
  • Choose a moist area that gets sunlight for most of the day.
  • Dig a bowl-shaped hole about 3 feet across (91 centimeters) and 2 feet deep (60 centimeters), with an additional sump, or deeper pit, in the center.
  • Place the container into the sump.
  • Place the plastic over the hole and cover the sides with rock and soil to keep it secure.
  • Put your rock in the center of the sheet and let it hang down about 18 inches (45 centimeters), directly over the container, to form an inverted cone.
The moisture from the ground reacts with the heat from the sun to produce condensation on the plastic. The sag in the plastic forces the condensation to run down and into your container. A successful still can produce up to 1 quart of drinking water per day.


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