When can I bring my baby to public Swimming pool?

I started really young with my kids. I feel that it'll help to build up their water confidence and immune system faster. so to speak. not too often though. we used to just sit at v the side and get her splashing... 4 months old. .. they love the water now and both can swim. I used to teach swimming at a swim school and we took in babies as early as 6 months with mommies visiting the public pools often enough besides going for swim classes. but then again is all up to you. a little bit of splashing here and there won't hurt your baby. just like how a little bit of rain won't hurt too.. hehe! ! it's really up to you. =)