You could easily tap into the pool pump wiring at the pad.
Run the wires to a separate timer box mounted on a post at the pad. Run the line side from the timer to the pump (for continuous power). Run the load side to the SWG control box (so the timer controls power to the SWG). The time would be set to run within the times that the pump runs. You would need to verify the pump time and the timer time at least monthly or after any power outage to keep them in close sync. The SWG control box could be co-located with the timer box on a post.
There may be additionally ways to control the SWG for when the pump is running - thru relays - as well.
I'd suggest the SWG control box has a roof or cover over part of it to protect it from the elements.
+1. And If you're going the Circupool route, they always have a upgrade sale if you buy from them that you buy the RJ-45 (etc) and upgrade for $1-$10. It was $1 recently but even if it goes up, it's a joke. The 'sale' has been going on since I got here in 2019. Lol.
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