Hotline it is 230 volt, tripping is at start up. This motor is fed through a float, so there is no motor control, the control is strictly for high alarm. I will change breaker to 25 amp, just not sure if it's legal, since I don't know what the nameplate is, or if the motor has overload protection(which excludes the exception of next size up).

Reno, I have heard that the hepatitis shot they give you, is for one form of it. And there are several types, so I gotta draw the line and say "No way!" Bearings could be, don't think anything is caught in motor, but will check with septic guy that inspected pump prior to my service call(they are not licensed for electrical).

Leland, conductors should be fine, it is overcurrent tripping not short circuit.

Thanks guys,
this website is very helpful.
H20