Hello
cmc0619
First of all, congratulations for your great project (I think I loose it when reading the forum...)
I want to post about the GFCI for human protection. I think I am protected by the house main GFCI, as all power for the pool goes from them.
In fact, I really have 2 GFCI in serial (that I think is not a very good idea): one for general house, and other for kitchen and outside (garden, pool, etc.)
Time ago when I have troubles with ground of a 40 years old pump, the GFCIs (both rated at same 30mA) cut the power in a unpredectible behaviour: sometimes the main of house, sometimes the secondary of the kitchen, sometimes both...
Do you think you need aditional GFCI if you have one before the circuit? I think only GFCI "in-parallel configuration" can have some advantage because a problem in the pool can make cut only this circuit and not all the electricity of the house (i.e. think about the fridge at holidays)