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5 Gallon Bucket Swamp Cooler DIY Project - Cooling your tent or van. The basic idea for the bucket cooler is just a smaller version of Yellowdog's cooler made from a rubbermade garbage can. An evaporative cooler will reduce the temperature by 20 to 30 degrees. All the ideas that people came up with on this thread are a perfect example of radical self relience! (Bravo!!!)

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Homemade 5 gallon bucket Air Conditioner: Small fan set on top of lid, 1 gallon milk jug of frozen water inside the bucket. Air output varies between 40-45 degrees F. It can also be made with a styrofoam cooler instead of the bucket.