I have a Pentair Optiflo 347986 1.5 HP single speed that I need to replace. I have read that a 2 speed (less HP) would be better and more energy efficient than the single speed 1.5 HP I currently have for my 24 ft 52" round above ground.
I see the Optiflo 347990 1 HP 2 speed on Amazon and thought it might be a good replacement. My question is - do I need to consider my filter (cartridge / DE) system also in making this selection? For example, is it possible that my filter requires a constant 1.5 HP to filter properly or will it run fine while using the lower speed on the 1 HP replacement?
Thanks in advance for your responses.