My filter had a pinhole in it so the pool guy came out and replaced it and most of the lpumbing and all of the o-rings and so forth. Since then all my Hyaward Navigator Cleaner wiil do is go around in a tiny circle. At first I thought too much suction but backing the valve off has no effect. Any ideas? or is this just a coincidence and the cleaner needs repairs.I have ordered a Flow regulator to see if that helps

