I have a Zodiac Dolphin Wahoo in my 27' round ABG
Everything on it is "correct" as per the instructions (hose lenght, not coiled, flow direction, etc)
It used to work great. Throw it in there every other day or so, and 4 hours later, the pool bottom is clean.
Now it is beginning to "stall". It moves along, and then - stops. I can find no rhyme or reason to it. Sometimes in the middle of the pool, sometimes along a wall. sometimes near the skimmer, somtimes away from the skimmer.
You have to grab the hose and shake it, or "push" the hose against the cleaner to get it started again. Sort of give it some resistance to work against.
I cleaned the diaphram, and the filter pump is working as it allways has. It "stalls" like this no matter how I have the pressure settings on the cleaner set. All rubber parts are good, nothing is worn.
I am at my wits end with this thing.