New to pool ownership and this forum. Definitely seems to be the place to come to for the do it yourself pool owners, lots of really good advice from what I have seen so far! The Poolvernuegen 4X suction cleaner in my pool has a really hard time making it around the pool, has a hard time getting out of the deep end and nowhere close to climbing the walls. Focused on the cleaner first, put new tires on and inspected gears, hoses, etc. All seems good but I could be missing something. Filters and pump basket are clean and lines appear to be clog free. I can only adjust the suction so far with the Jandy diverter before the pump starts to struggle, almost like its water starved or taking in air. If I pull cleaner and leave port open it clears up. I'm kind of stumped, and not sure how to proceed any thoughts would be appreciated. Thanks!