DKN1997,
Great stuff here. It was helpful to hear of the various approaches that you've taken over the years based on your experience. Good point that a two motor system gives you a built-in spare in case your filter motor burns out. Sounds like a single motor ain't gonna cut it, especially a 1HP. I do know he uses individual 2" lines for everything, so maybe he's thinking I could upgrade the spa pump in the future. I'll take your advice and ask him more questions.
Best regards,
-joel