That should come as no surprise to any adult. Kids are the main culprit - they're just nasty little germ factories.

Mrs BD is a health dept inspector. She is extremely reluctant to get in a pool, public or private. She says the filtration and chlorination are seldom up to specs. SELDOM!

And you really don't want to hear what she has to say about hot tubs. She won't get in one. Ever! Me either!