Never go by pictures for electrical wiring, get the diagram from hot springs web site, depending on your series tub, you can download the owners manual in pdf format and it will show you exactly how to wire it. On the high life series tubs, they have a 4 conductor from the 50 amp breaker main panel, it then goes into the sub panel, how you wire the neutral wire is important. So, like I said, never go with photos, go with a diagram from the manufacturer of the tub.
