I used to backpack and camp a lot. When we needed more water than we could carry we would collect a bottle of it from a stream and purify it with a drop of iodine. I always wondered if that extra iodine could have not been so good for me (I have hypothyroidism). But I feel better after reading some of the link. It is a good site. Thanks Kim.

My son went on an extended trip in the Boundary Waters Canoe area this summer. He said they drank water from the lakes. I asked how they purified it and he said "with iodine". I feel better about that now.

--Judy