We have a Pentair Legend pressure side cleaner in our pool and have noticed some operational issues lately. For one, it always seems to get stuck in the deep end at some point during the day. Recently, it will stop moving all together anywhere in the pool and when I begin to pull the hose in, the pressure relief valve in the wall of the pool appears to be blowing out more water than usual and the backup valve in the hose is blowing out A LOT of water at a higher pressure than normal. When I pull the cleaner out of the water (with the pump off), I don't find anything glaringly wrong....but I also don't know what to look for either. I am VERY GREEN with this pool stuff and any info or recommendations is greatly appreciated!