Yep, two 1 HP pumps and a 3/4 booster. The rather oversized VS should be sufficient.
I picked the EasyTouch 8 so that I wouldn't run out of control lines for the actuators. Can two actuators be driven from one control line?
Currently if I was brave enough to turn on the current really old heater (and I"m not), I could turn the Jandy and the two valves on the copper lines to isolate the spa. I don't think the valves on the copper lines could easily be moved by anyone at this point without a large monkey wrench. I'd like to cut them out and switch to PVC for as much as possible.
I'll also be removing the current heater from the circuit, but leave space just incase we decide to put a new one in sometime later (which would be before the SWG cell).
I believe the solar panels could actually get the spa pretty toasty, hopefully the EasyTouch 8 is up to the programming.
There is however 1" (or so) return to the spa that connects into the pool return, so any time I run the pool I get water into the spa. I don't see this at the pad, so I may have to block it and figure out a way to selectively with a valve get some flow into the spa at the start of the day.
BTW: Is there a program that people use to post flow diagrams of the water/pumps/filters/etc? I'm going to draw things on paper and get some reviews before committing it to plastic.