I had been thinking about getting a wall whale before I saw this thread and after reading the reviews thought this sounds like just what I need. I didn't get the same results. Using it on the walls the transition from down stroke to up stroke takes too long and it just doesn't seem to have the pressure I was looking for.
I want a pool cleaner that will scrub everything and free me from this hellish chore. It sure wasn't the Dolphin diagnostic.
Herb