I do like the operating simplicity of the VF. How accurate is it's flow measurement? I presume that it maintains flow by measuring flow and adjusting the speed to maintain flow.
I'm thinking about the Hayward ECO-Star Variable Speed with Safety Vacuum Release System. I believe that I can connect the GoldLine 235 solar control unit directly to the pump to run at pre-defined speed and that I would need a pentair control unit to get the solar control system's signal to the pentair pumps.
Am I wrong?