gfretwell,
The conductors are sized correctly.
jw electric,
Art. 110.3 (b) does answer the question.
My only other option would be if I were to tell the customer that I could tie into the pool light circuit but would have to disconnect the pool light from the circuit. Then the spa motor would be on a separate 15a circuit.
Of course that raises the question of the option for her to have someone reconnect the pool light later.
Ethically, I don't think I should do it this way, even though technically it would be legal.
