My old pump was ancient, rusty, and seemed smaller in size than the superpump. The motor looked a bit newer like it had been replaced at some point. The motor was a 1HP Magnetek "E-Plus", I remember it was 6amps at 240V but never noticed the S.F. rating.

My old filter pressure was only about 3psi clean but I got great flow. I have no heater, only the DE filter and SWG.

With the 1.5HP superpump I get 10psi on the clean filter. Seems like a LOT of flow on high speed, almost too much without the Polaris cleaner hooked up.

Ordered a replacement 1HP unit to swap for the noisy 1.5HP, we'll see how it goes...I notice the 1HP superpump is only 5.8A on high speed, where the 1.5HP is 8A!