[DangeloInspections]

The code states that any window within 5 feet of the waters edge is supposed to be tempered glass. Sliding glass doors are already tempered glass. Most windows are not.
Any outlets or switches are supposed to be 6 feet away from the waters edge. Any aluminum or metal within 5' from the waters edge needs to be bonded with at least #8 bonding wire. A 110 volt spa that already has a GFCI cord should not be plugged into an outlet already protected by a GFCI breaker.

I find these codes non-compliant all the time. Many folks just buy a spa and install it however they want to without any thought of being code compliant. I am not saying this is right or wrong....just saying what I find on a daily basis.

Hope this helps!

Frank D.