When my filter system comes on, the motor not the pump make a noise, its hard to explain, its not squeling like bearings, but the noise goes up and down, after the pump/motor run about 10 minutes it disappears and sounds normal, it does this everytime it turns on, I have replaced the shaft seals and gaskets. Its a whisperflow 2 h.p. motor 4 yrs old. Any suggestions on what to do??
Seconde question, I know this will vary by run times but approxiamately how long should a motor last?