Hot Tub Wiring
My hot tub calls for a 40 amp circuit. I want to install a 50 amp circuit. I want to know if 8 awg THHN is the proper size wire? I know I will need 4 of them, but do I need to buy a green, a white, and two black? Or can I buy it all in black and just recode them with colored electrical tape? I would like to know if the ground can be of a lesser gauge? How do I determine the proper size and type of conduit to use? Thanks for the anticipated help!