Good afternoon. I had to replace the motor on my 1.5 HP Pentair Superflo Pump last summer. I replaced it with a AO Smith Centurian B2854. At that time, I replaced the pump seal and all of the o-rings and seals. It had a small leak all summer and I took it apart and reinstalled it at least 3 times. I am doing it again. I have bought a new set of pumps seals, US SEAL PS-200. I believe it leaks around the shaft seal not the pump casing. Any hints or suggestions would be greatly appreciated.