I just got a hot tub from a frend, be for we on hooked it I got a amp reading of 28 amps, this was on high speed pump and the heater on, would it be okay to hook up to a 30 amp breaker, reason I'm asking is I have a 30 amp wired 10 feet away, other wise my breaker box is 35 feet away, just trying to save some money on wire, start up is high just for a second, hard to tell around 40 amps happens so fast then gose to 28 amps, thanks

Whatever size breaker you have the spa cannot go over 80% of that, so if you a 30-amp breaker your spa should not a total load over 24-amps.

You will also you need check your local codes and the NEC the insure the spa is installed to code.

A 40 Amp breaker would definitely be the 'standard issue' breaker for that tub, and like Gary said, be sure it's wired to code.

If your existing circuit is 30 amp I'm assuming that it may have only 10 gauge wire on it? If so, then you'll need to up it to 8 I believe with a 40 amp breaker.

my pump is 110 volts chould I go to a 220 volt pump? if it can be done, this is a great lakes spa, 1996, this would put me into the 80% range, plus it would be cheaper to run. thanks

you can certainly do that. You'll have to change the common on the pump motor to L2 input instead of Neutral though.

If remove the 120-volt pump and install a 240-volt and change the neutral to a common (hot) the GFCI breaker will trip if the system was not setup to do this originally.

I wasn't referring to moving the neutral to hot.

Was talking about the common line of the motor itself - that would be removed from neutral then re-connected to L2.