Grounding a Bullfrog A8

[Sorrentino100]

Where does the ground wire connect when wiring a 2017 Bullfrog A8? One dealer had two ground wires coming from the heavy temporary showroom cable with each separate ground going to each motor.

The wiring diagram shows only one ground wire, so where does that attach?

[Jacuzzi Jim]

 Ground wire from the breaker or disconnect goes to the ground bar on the outside of the control box inside the spa.   Pretty stupid how it is set up, but it is what it is. 

[Beck0101]

There is only one ground running into the spa.  I assume your dealer has something extra interesting rigged up for GFI perhaps?  That's not standard.

The wire routing inside the spa is a bit tight but there is a proper home for all four (4) conductors you run from the disconnect/breaker.