You can do it like that as long as you're not overloading the breaker.@JamesW - couldn't I do this all with just two timers, one 104 and one 106. I'd hook up the pump the way the diagram is shown above. But then for the Polaris, I'd run the common from terminal 4 of the 104 to the Polaris as well and then connect the Polaris to terminal 3 of the 106. That would make it so the Polaris turned on at the same time as the pump switched to high setting. Correct?