I just purchased and installed a new Polaris 165 cleaner. The cleaner seems to be working, but I notice that the cleaner likes to stay in the deeper end of the pool. I watched it for about 45 mins. and noticed that it went partially into the shallow end only once during that time. Am I doing something wrong? I'm pretty sure I followed the installation instructions correctly and properly adjusted the length of both hoses.

The pool is inground and is 12'x30' (approx. 8500gal). I have 2 wall return jets, 2 return jets in the stairs, and 2 return jets in the floor of the deep end. I currently have the stair jets off and the floor jets off. The cleaner is attached to the wall return jet nearest the pump. The other wall return is open. If all the returns are open, I notice that the cleaner doesn't move around as well or at all.

Can I keep the cleaner connected to the wall return and in the pool when the pump is off?

Thank you for your help and advice.