I choose the garage humidification if you can pull it off. Swamp cooler idea with the pool?
better to test ASAP and see if it’s feasible.
What kind of tank is on the humidifier? Is it possible to feed via external reservoir?
May not be worth the trouble but if you would use it on a regular basis…
This is what I’m using to autofeed my micro octopots. Thanks to @GrouchyOldMan