Pool Pump is not reliable

[Poconos]

Starting capacitors are non-polarized so it doesn't matter which way they get wired. Usually when a capacitor fails it shorts or opens and doesn't become intermittent.
Al

[Ohm_Boy]

It would be worthwhile to connect a meter to the power wires at the motor, and watch it while it tries to start. That way, you can see if there is any significant voltage drop under load. If there is, the wiring to that point is suspect.

Always be careful with the wires exposed when the power is applied.

[anotherpyr]

Starting capacitors are non-polarized so it doesn't matter which way they get wired. Usually when a capacitor fails it shorts or opens and doesn't become intermittent.
Al

Good thing too considering you're dealing with an alternating current and that electrolytic capacitors can explode if the polarity is wrong.