My yard = zones 1 - 9.
I'm fortunate to have a zone (10) to keep the built-in pool filled up using the sprinkler system as a source for water. Don't have to use a hose from the water faucet.
I've got my flex schedule set up. No restrictions. Water any day of the week. Start at 12:00 AM and go for as long as flex schedule determines is needed.
For zones 1 - 9 I've got planting, soil, slope, sun, heads, and SF all set up correctly. My soil type can accept 0.2" per hour so flex schedule has arranged everything to keep the moisture balance constantly above 50%.
The pool's no different. It's actual water level rises when zone 10 is on, or when it rains. It loses water due to evaporation (today was 104 degrees - with so much surface area I lost a good amount of water today). And so the 'bank balance' is very visible.
My question is, what parameters do I put in for zone 10 such that at the moment, with the heat and no rain, this zone (the pool) gets about 5 min. every day?
First reaction may be to simply set up the pool to daily water for 5 minutes. But, I'd like to experiment here and see if I can simply flex schedule everything in one flex schedule, including the pool. Especially since the pool really isn't any different than a 'normal' zone: Prev water level = Irrig + Rain - pool water evap = Current water level.
This is kind of like a science experiment to see if I can say: everything outside that exhibits 'crop evap' is being managed by one Rachio Flex Schedule.