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I have left my powder pool chem in a weatherproof box outdoors for the past 2 years and have never had any problems.Jr
I wouldn't do it. As nice and convienient it would be. To much moisture outside and the chems will harden.I am very suprise so many are getting away with it.One thing can you do is put a small amount in a container and test it.Should be stored in a cool DRY place.
Does anyone in a cold climate keep their's outside? I would rather keep them outside but I keep them in the kitchen.Rayman