A lot of people don't like chlorine because it is a mild irritant. Also when it reacts with urine it smells bad. I guess they are willing to risk a bad case of ecoli or worse? Bottom line we can't have safe public pools without the stuff.

The life guard probably doesn't deal with drownings, I think he is there to prevent the worst kinds of rule breaking amd other injuries. They also tend to enforce a 10 min sitdown period every 30 minutes to give the kids a break.

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