If you know your soil, what is the perlite ratio, big chunk? Self built or bagged or empire?, does it have rocks or husks to allow drainage? Are the pots on pallets raised or in hard clay or dirt or a hill?
25 gallons, this is not correct, you can go 10 gallons every day and you can also go 25 gallons twice a week.
25 gallons a day is totally not correct. not trying to be an ass just thinking that you will get root rot 25 gallons a day?
It hits 110+ where I am and never used that much even only half that.
I do want to try the 20 gallons flooding and no water the next day until it drys out.
I my self have a very advanced watering system so I can go 8 gallons with 300 gallon pot.
Timer puts in 2 gallons at 5am, 2 gallons at 7am, 2 gallons at 8am, 2 gallons at 7pm, = 8 gallons.
There methods if you want to save water like packing the sized an d tops with heat barrier (Straw or compost)
Something to keep the sun from leaching the moisture.
25 gallons you need to find a way to get that standing water off draining from the "Soggy feet"
For your well just get a large tank and have it pump there
This is my experience with 300 gallons that the dirt will shield the plant from leaching plus big plant will cover dirt.
sorry no drama intended just my results.
Im really just more talking about where the water is going to go, you can put in 40 gallons a day if it drains out and you have big chunk drainage soil.
Some plants iv actually killed with 10 gallons. They liked a more arid soil. When I cut off the water that same streign finished out fine,
"Was not a heavy drinker" some plants are not heavy feeders also.