I have a Hayward Super Pump Model SP2610X15 on my pool. It's rated at an insane 19.6 amps max on 120v AC. I've measured the actual current and found that it typically draws about 16 amps - which IMO is a LOT. I'm looking to save some money on my utility bill by upgrading to a more efficient pump - but only if I can recover the cost of the pump in a "reasonable" amount of time. More details: I only run the pump during the summer (4 months) and I currently run it for 7 hours per day. The clean pressure is about 14-15 psi through my 30" sand filter in case it matters. The sand filter is brand new this year and replaced a 30 year old 24" sand filter that held less than half the amount of sand. My inlet and outlet plumbing is only 1.5" PVC.
Specs for existing pump with 1.5" inlet/outlet:
83GPM @ 20'
75GPM @ 30'
65GPM @ 40'
53GPM @ 50'
36GPM @ 60'
So.... what would you recommend as a replacement? I'm thinking a smaller HP, high head single-speed pump. Am I on the right track? Is the Pentair WhisperFlo any good? How about a Hayward Super II?