6 gross facts about swimming pools

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    This summer, millions of Americans will be flocking to swimming pools for some fun in the sun.

    But while taking a dip is a great way to beat the heat, many public pools are crawling with germs -- and, if not treated properly, can pose a major health risk.

    Before heading to the pool this weekend, find out what could be lurking in the water -- and learn how to protect yourself and your family.

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    Ashley Welch covers health and wellness for CBSNews.com