I have a question. Lately when I have been using my polaris when it gets caught in one particular corner it just gets stuck. Basically it will start going up the wall and will not move from that corner at all. That is the only corner that i does it in. So I have to go out and move it from that corner and then it runs just fine. Also sometimes it gets suck on the step as well and it is like it can not grip the stairs. So my thought is for the corner maybe I do not have a long enough hose and it bends a little therefore restricing proper water flow to it to move it. It does not kink up or anything just bends a little more right by the insert to the wall. My thought it I need to just get some more tubing to add to make it a little longer.