I think I'm going to replace my 1 HP Anthony pump with one of the following 3/4 HP pumps in bold below. Is the difference pretty straightforward, just that one is more energy efficient? I see that the SFHP for the energy efficient 3/4 HP pump is 1.25 which is the same as the standard efficiency 1 HP pump. The energy efficient pump is slightly more expensive. I know it would be beneficial to go with a 2 speed pump but being that my pool is only open for about 4 months a year I'm just going with a single speed. Which one would you guys go with?
From Pentair:
ENERGY EFFICIENT SINGLE SPEED
Pump: Pentair Superflo 348022
Voltage: 115/208-230
Full Load Amps: 8.8/4.5-4.4
HP: 3/4
SF: 1.67
SFHP: 1.25
Curve Key: F
Pump: Pentair Superflo 348023
Voltage: 115/208-230
Full Load Amps: 11.2/6.0-5.6
HP: 1
SF: 1.25
SFHP: 1.25
Curve Key: G
STANDARD EFFICIENCY SINGLE SPEED
Pump: Pentair Superflo 340037
Voltage: 115/230
Full Load Amps: 10.8/5.4
HP: 3/4
SF: 1.25
SFHP: .95
Curve Key: F
Pump: Pentair Superflo 340038
115/230
Full Load Amps: 14.2/7.1
HP: 1
SF: 1.25
SFHP: 1.25
Curve Key: G
Now one more question. Since these pumps come with unionized fittings would there be any reason to install a separate union before the pump connections? I don't know if I have room to do that anyway but would like to do it the right way. Thanks.
From Pentair:
ENERGY EFFICIENT SINGLE SPEED
Pump: Pentair Superflo 348022
Voltage: 115/208-230
Full Load Amps: 8.8/4.5-4.4
HP: 3/4
SF: 1.67
SFHP: 1.25
Curve Key: F
Pump: Pentair Superflo 348023
Voltage: 115/208-230
Full Load Amps: 11.2/6.0-5.6
HP: 1
SF: 1.25
SFHP: 1.25
Curve Key: G
STANDARD EFFICIENCY SINGLE SPEED
Pump: Pentair Superflo 340037
Voltage: 115/230
Full Load Amps: 10.8/5.4
HP: 3/4
SF: 1.25
SFHP: .95
Curve Key: F
Pump: Pentair Superflo 340038
115/230
Full Load Amps: 14.2/7.1
HP: 1
SF: 1.25
SFHP: 1.25
Curve Key: G
Now one more question. Since these pumps come with unionized fittings would there be any reason to install a separate union before the pump connections? I don't know if I have room to do that anyway but would like to do it the right way. Thanks.