It's interesting that you posted this, because I saw on yesterday's news a story in a town near me, where they had to close their pool for the day for cleaning, due to fecal matter. The Facebook comments revealed that they do not allow any non-potty trained kids in the pool, at all. So what happens? Parents lie and say they are, then whoops, there's a dood in the pool.
Mom to a girl - 5, a boy - 4, and Baby - 21 months