I'm six-days post PKR. Been in the pool since 4 days post, my OS gave me a stack of these awesome waterproof bandages, they really do the trick! I was keen on the pool because a) it's summertime here in NY and b) I have one right in my backyard. In-home PT showed up on Day 3 ( I was home on Day 2 from hospital ), and when I mentioned the pool, she took it as a professional challenge to come up with the right exercises, etc for me. Day 4 she appears in my backyard, and we're immediately in the pool. She came up with a set of things I can do now, next week, and next month. I'll echo some statements from other posters: take it easy, the pool can make it seem like these are easy exercises, but they are not! I'm pretty pleased, ROM right now is 110 degrees +. I just have to keep telling myself not to overdo it...