Not sure of your local regulations, but here it is a code violation to have ANY other electrical device on the same breaker/circuit as your pool pump. The requirement is in fact a twist lock plug so only one outlet is in the box.

I'm an electrical engineer so I can help you with the current draw part...

The motor can be wired for 120 or 240 volts. 115/230 is just a old fashion term, but pretty much all of north america is over 240 volts now for residential. The motor max amps is the cold starting amps required to turn the motor from a dead stop, this can be anywhere from 1.5-2 times the normal current. That being said, you have to size circuits based on that value so the fact it will draw less current means nothing.

This motor at normal 120 volts will draw a maximum of 17.25 amps. If it is wired for 240 volts, then the maximum current will be 8.6 amps.

The circuit breaker is WAY over sized for this motor, did a licensed electrician put this in?

The circuit breaker for this motor should have been 20 amps, wired with 12 gauge wire, and again it should be in a water tight electrical box with a twist lock plug that only allows for 1 plug to be on the circuit.

At my home for example, I have two separate feeds, one 20 amp circuit feeding my pool and another 20 amp circuit feeding a outdoor outlet that sits under my deck for anything I need to plug in on the deck.

I wouldn't recommend doing this any other way.

Regards.