My pump is leaking and the motor is noisy, so I figure it's time to change it out. I did a feet of head calculation, and am getting ridiculous numbers >100. As an example there are thirteen 90 degree elbows visible, they're a combination of 1.5" and 2", so that alone is about 100 ft of head if I understand the calculation correctly. Yes, I am going to re-plumb. I've been in the house 7 years, and the pump looked old then. It's a 1.0 HP Magnetek part # 10-164303-22, 3450rpms, and wired for 220. Can I put in any 1.0 HP motor, single speed, dual, or variable? It seems like there's a bit more to it than that?