First, let me point out the reference being cited is unofficial. This is a guy’s personal website, and he doesn’t cite an reference to his information.
I run a public swim area (camp). So if there is any credibility to his statment, it only applies to cruises, or I would have received one of those nifty memos Dept. of Public Health bombards me with every year.
I’m also a Certified Pool Operator, and while I agree you don’t want feces in the pool, a swim “diaper” is more than adequate. The issue is containing the solid waste, which a swim diaper does. Few people realize that when a pool is maintained properly, it is cleaner for you to drink the water in a pool a kid just pee-ed in than to drink out of the tap at a drinking fountain. (Fewer people know how disgustingly unsanitary a hotel hot tub is, but I digress…)
Assuming this is cruise line policy, this is government nonsense run amok again! It reminds me of the memo the Dept. of Health issued to all Illinois camps last year about Bat Rabies. “Bats are dangerous. Bats carry rabies. Keep bats off your property.” (There has been less than 10 cases of humans contracting rabies from bats in the last [B]30 years[/B], but some health official felt the need to spend a couple thousand dollars in tax money to send out official memos!)
Oh, and my swim diaper-clad kids were swimming at WDW in January. So don’t worry about the resorts. Like I said, this is either mis-information, or only applies to cruise ships.