I agree with footie the jets would be great for you if you are having a lot of problems. With jets on the HydroWorx pool they can be used for balance resistance exercises and swimming. And in you are having a lot a shoulder pain the massage hose is great. I have used it before. Plus the added benefit of the treadmill in the therapy pool was always a huge plus for me. Hope this helps you.
You can check out HydroWorx therapy pools. They have all different sizes of pools and the option for a deep well that is 7 feet deep. The other great thing about HydroWorx pools is that they come standard with a 3x5 intergraded treadmill in the pool along with swim spa jets and massage therapy hoses. They are great pools with all different sizes and styles to fit any needs. www.hydroworx.com