I'm a new pool owner or will be. I'm still trying to understand variable speed pump savings and whether I should go single speed or variable speed. I'm looking at the Hayward 1.65 hp Super Pump VS. I took a shot at calculating my TDH. I estimated it to be around 30. In looking at the pump curve for the Super Pump VS, it looks to me at a TDH of 30, I wouldn't have any flow until the pump was running at around 2400 RPM's. Am I reading that right? I like the idea of running the VS pump longer and slower but I'm not seeing where I could run it very slow. If I'm wrong in my TDH calculation and it was closer to 40, I'd need to run the pump at 2700 RPM to get any flow, the way I'm reading it. Am I reading this wrong. The hydraulics of this is confusing.