OK...I'll admit it. I don't know how to tell the difference.

I'm installing a new pool pump motor. I've got it all wired, the impeller is good to go, etc. The only thing I'm not sure about is this: There is a toggle on the motor that needs to be set to 230V or 115V...depending on what is running to it. The wire is connected to a 20 amp double-post breaker in the box. How can I determine if this is 115V or 230V?

If this is something I should just inherintly know....please forgive me and don't laugh too hard.

- Keith