By solar I mean solar collectors. The issue with solar is that it adds return head (i.e. PSI goes up) which reduces the flow and also reduces the suction somewhat. I can adjust the amount of suction to the cleaner with a valve but I do not want to do that for each time the solar is on or off so I must make a compromise of somewhere in between. Too much suction on the cleaner is not a real problem but the pump can draw in air when the suction is too great. Again not a real big issue.

The best thing about thepoolcleaner is that it requires less suction than most other cleaners so for a low HP pump or with solar, like me, it will still work when the suction drops a bit. However, when the suction drops, it moves slower and will not climb the walls as well. Still not a bad trade off.