I'm finally looking to upgrade my pump to a 2 speed model. I was pretty settled on the whisperflow 3/4 hp, but now the 3/4hp 2 speed from electricmotorwarehouse.com has caught my eye. Here's the specs of each, the pentair is first:
Model Voltage Full Load Amps HP SF Price
WFDS-3 115V 14.6/4.7 3/4 1.67 $540
EMW 115V 11.2/5.0 3/4 1.50 $358
I have emailed the company for the flow chart for the second. I assume the pentair is a bit more energy efficient, but is it enough so to offset the almost $200 more price tag? I plan to run the pump on low speed 24/7 during season, with bursts at high for vacuuming, etc.