Pool Pump and Blowers 120 volt

[tom baker]

I'll step back from this as I don't know what a spa pool blower is or a salt system. My hot tub plugs into a 115V receptacle, is self contained and draws 15A. It uses the heat from the motor to heat the water. Works great.

 

[Mystic Pools]

I would think your 1.5HP motor should be able to be wired for high voltage. It'll certainly draws less amps. I'm pretty sure motors 1 HP and above can be converted.
Salt systems are generally wired on the load side of a pool pump. If there are powered continuously, with no water flowing over the cell, they can become damaged.
Air blowers I get are available in 120V or 240V. I opted always 240V.