I water, according to my scheduled days, twice a week.
I have placed small cans on my lawn/grass and measured one and a half inches. I have zoyzia grass and it takes my system to run 90 minutes to put down 1 1/w". I set my timers to put that much on the grass in total. I set Program A to run for half that time, (45 minutes) throughout all of the zones....Flower beds get 10 minutes. I set Program B to run the remaining half of that time (45 minutes).
My reasoning.....I want as much water as possible to reach the roots and by running the system in two passes, I loose less to evaporation and more going to the roots.
I know it may be a little complex, but I have a great looking lawn.
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