Sorry if I missed the answer here somewhere but after installing a new replacement Polaris 280 it seems to get stuck at the wall connection every hour or two. My wall connection is just several inches above a shallow pool seat and the Polaris seems to come back to the wall connection and get stuck more frequently than it did previously. I have had a few 280s of the years and they were all less prone to getting stuck at the wall connection so I'm thinking there might be an adjustment I could make on the new Polaris 280 or it's hose? Thanks!