Even if you’re not an avid swimmer, a quick dip in the pool is so refreshing on a hot summer day. The hitch: The chlorine used to kill bacteria, viruses and other harmful microorganisms in pool water ...

Whether you're a serious swimmer or just love to splish and splash around, spending time in a crystal-clear pool on a hot day is one of life's greatest pleasures. But there's more to opening up a pool ...