Phoenix backyard build under way! Follow along!

[HX_Guy]

Looks good! And the Whitfill nursery folks are good people. To answer your question from above, poly gas pipe is cheaper and easier to work with than rigid pipe, plus it basically lasts forever. Quick word of advice: make sure that your ash trees get deep watering. They grow quickly, and will take water from wherever they can get it. (i.e. roots running thru your grass).

Hopefully those 24" deep soaker pipes will do their job. I'm also putting a hose at the base and letting it trickle for a while here and there.