Sunlight is hard on a lot of things and not just man-made things: many minerals experience color fading with prolonged exposure to direct sunlight such as amethyst and vanadinite and celestite.
You should store your water in a cool, dry place out of direct sunlight exposure if possible. I would suggest changing your stored water once a year but confess I don't even follow my own advice on this with my own cache of 6 5-gallon jugs having not been changed in several years... gotta get on that methinks!
Kimmer
On Mon, Sep 10, 2012 at 11:23 AM, aweaawea <windpower@earthlink.net> wrote:
Check out http://groups.yahoo.com/group/californiadisasters/soft drink bottles used for water
Using fruit drink and soft drink plastic - ~liter or two liter bottles to save-store water- how long should they be replaced, or at least washed out and new water put in.
What is plastic chemicals that degrade and get into the water?
I presume that it gets worse quiker with sunlight and Heat storage place?
I try not to drink out of it if stored more than a few months - but ?? Does someone have a "yard stick" of rules of thumb?
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