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Thanks, Sorebikr. The issue is that I already have s 50A breaker and 8G wire running to an existing tub so I am trying to figure out if I need to rewire the whole thing or just use the 50a setting. I am worried that if the previous owner had it set for 60A, it will keep tripping the breaker. I don't know how to check that, though, so hoping someone will be able to educateg me before I go and rewire the while thing.
The spa will accept 50 or 60 amp with out changing anything, I would recommend 60 amp.