Reply by Sawkerf

Do you have any other 220v loads in your house (oven, clothes dryer, et)? If you’re plannng to abandon the hot tub, that 220v wire could probably be relocated to feed your garage.

If you “think” you have a double 50 amp breaker, this might not be a job you want to take on. Electrical work isn’t terribly difficult, but it can definitely bite you in the ass if you don’t know what you’re doing. An electrician would be able to do your job quickly and safely.

-- Adversity doesn't build character...................it reveals it.