I just got my new Intellifo VS hooked up and programmed. I had to increase the default priming time from 20 seconds to 2 minutes, since it wasn't pulling enough water into the pipes before dropping down to low speed.
Now that I have that solved, I am running 2x a day for 4 hours @ 1000 rpm b/c I was told that is the most efficient setting. The pump reports it is consuming 125 Watts of power at the speed. The pressure gage on my sand filter shows 0 psi. There is water moving, I can feel suction in the skimmer and weak flow out of some of the return jets. When I run high speed for vacuuming I set 20 psi across the filter. So is there a minimum pressure for filtering, or is lower always better, as long as you are moving water?