My Northstar pump died (well, it was squealing like a pig and pool guy said it was dying). It was a 1.5 HP motor / 1.25 Service Factor.
I called around and found a company that had one in stock (the pool company wanted to charge double the price I could find everywhere). They told me they had a 1.5 HP AO Smith motor in stock, but didn't tell me what the Service Factor was. One one hand, it's an exact replacement for the one I have. On the other hand, it could be an uprated 1.5 HP motor, which creates overall "power" about 30% higher.
If they do install the more uprated motor into the pump chassis, does this mean I can run my pump less, since more water is moving through the filter per hour? I currently run it 12 hours / day (25k gal pool). Could I run it, say 9 hours instead?