Does anyone have head curve for older UltraFlow Pumps ?
Trying to get exact GPM. I have 2 Pentair UltraFlow pumps:
1) 1 HP 1.25 SF
2) 1.5 HP 1.1 SF
Total head is in 55 ft. range. I am getting wide range of results for different pumps with the same HP (obviously, because the pumping mechanisms are different).