I'm using old Kitty litter bucket as a reservoir. Have a submersible pump, rated at 160gal, that runs tubing to the pots. Everything, including lights, is on separate wifi switches that I can turn on/off as desired. I only use the system when out of town for a few days.... I also have a webcam to check on the girlsGreat lookin grow . I would love to hear more about your improvised dyi watering system.
Fyi the water in the bucket, ph'd to the right level remains there for about a week, but I don't add nutes there.
I underwartered a few times in the past on my grows, trying to cut that out now.