On Aug 8, 5:35*pm, "HeyBub" wrote:

Right. You can put almost any (relatively clear) water in a clear plastic
bottle, put the bottle in the sun for a few hours, and, presto, sterilized
water.

How effective? What % of bacteria will simple sunlight kill in a few
hours? Thanks for the tip. I'll try that and retest it if you don't
respond and hopefully post the results here.