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When you understand how backflow works, and you read on these blogs some of the things other RVrs do. (like removing the check valve on their black tank flush, for instance), you would never drink camp water. But then, people go to Mexico and drink the water, and some get horribly sick, while others are unaffected. I prefer to buy a few 99 cent gallons of water at Safeway, and not worry.
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