I am trying to make some sense on how Hayward and Pentair rate their pumps.
I've called both of their tech support lines, and neither of them were able to give me satisfactory answers.

I've measured the draw on a 1.5 HP Super Pump - They say it is 1.5HP, but Consumption is actually 9.3amps at 230v. This equals 2139 watts divided by 746w/hp
= 2.86hp

For their Tristar 1.5hp - It's rated 1.5hp * 1.6 Service Factor = 2.4hp - But it gets worse, they claim 10.2amps at 230v = 2346w = 3.14hp

As for Pentair, they advertise 1.5hp full rated and 2.0hp up rated pumps. Apparently those pumps are identical, and all they did was change the service factors on the labels. Is it me or is this really deceptive???

Then they have the gall to recommend that I spend 1500$ on an intelliflow, when it seems that those pumps are only useful for people who want to turn various features on or off... It seems that the best way to save money would be to get the smallest pump possible that meets filtration requirements of turning the water over at least once every 12 hours then let that pump run all the time???

Am I missing something?