We're going to start "swim lessons" this weekend. DS is 3.5 months, and EBF - his poops are still quite runny. I ended up buying a reusable swim diaper, but know that both it as well as disposables are not meant to keep liquids in (just the more solid from getting out).
He hasn't 'moved' in the water since his first bath, so I'm hoping that it will be a non-issue. Any suggestions / thoughts, other than keeping my fingers crossed?