Start with just a few hula hoops, and then get some polyethylene film and a small soldering iron. Fit the film to your hoops, then gently mod your soldering iron and make a few spot welds. Be careful not to melt anything! Make a few vent bubbles, and you now have a pool warmer!
How to Make lily pad pool warmers that run on solar power
Sep 28, 2010 11:15 PM
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