I have a Pentair Pool Shark cleaner [which I love], but it will soon need to be replaced.
I run my pump daily at  hour on HIGH, then  hours on LOW. [10,000 gallon fiberglass pool]
My problem is that during the  hours on LOW speed the Shark just parks itself in a corner and does nothing. This is the reason for the  hour on HIGH where it works like a champ.
Are there any cleaners that are design to work on LOW speed? If 2-speed pumps have this issue, then variable-speed pumps must be worse.
Please help me decide what to buy next.