Jackson LOVES the pool... it's probably his favorite thing ever. His first summer, he did not dive in... his second summer, he was a diving maniac. He spends a lot of days in the summer swimming in my dads pool. When he's not over there, you can find him in the baby pool, or the ocean, or a lake, or any body of water he can find. LoL.
I don't worry much about the chlorine. It's never bothered him. He gets a bath weekly anyways. Sometimes I rinse him off with the hose with regular water. I do have a lifejacket for him that I like to use but he doesn't necessarily need it. He can go for longer periods of time with it on though so it definitely comes in handy and it makes me feel better to know he has it on -- he tends to over-work himself.