Swamp coolers (also known as evaporative coolers) work on the principle of a hot, dry summer day and cool water. Hot, dry air is passed through a membrane of flowing water. The resultant air is now filled with moisture. This water-drenched air is cooled due to the same evaporation effect. Just found a great step by step walk through of how to make a swamp cooler out of a bucket. This is a really cool contraption and although you’ll get strange looks from your neighbors for having one, you’ll get the last laugh because it will help to keep you cool without driving your electric bill through the roof.

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How To Make A DIY Swamp Cooler

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