Yeah, I think it came in as 10in. From reading on these forums I was under the impression that 4-6" was a more common root depth, but maybe that’s not the case for bermuda. I just found this article that says we should water bermuda to a depth of 8-10", so it sounds like you’re closer to the right answer.
Full article:
I changed mine back to 10", and now it wants to fire every 3 days for 30 mins (three 10 minute runs with 30 minute soaks in between)
The article above has another link to a Phoenix Watering Guide that I just found. I’ll be checking that out later. Phoenix Lawn Watering Guide - HOME
I’ll stick with 10" for a bit then will try the @plainsane suggestion of tweaking MAD a bit to see if I can optimize a bit.
thanks!