I pulled a starting capacitor from my well pump and used two meters that can measure capacitance. The capacitor sparked when I shorted it to remove the charge prior to testing. Other similar capacitors within 10 seconds show the capacitance and stay at that reading. When I tested the suspect one, it first showed too high a capacitance, then just continued to count down well below the capacitance on the label. Two meters do the same thing. I assume the capacitor is either bad or going bad. I will replace it, but am curious.