You didn’t mention what type of landscape? Grass or rock and bushes? Hopefully responders will comment on what they got so you can somewhat compare? You’re controller may have more than one cycle ? You also need to know how long each station is watering? If you have water running down the street for 20 or more minutes you’re watering the street drain more than you yard, it’s just running off.
I have rock yard on corner lot with lots of bushes, palms, and tropical plants . I have 6 stations, none of them run more that 6 mins each. I replaced most my pop up’s with individual plant sprayers which water the plant and not rock yard. I know exactly how many GPM I’m watering. I am not on separate irrigation water so I had to do test and math to know. I walk in early mornings and see majority houses watering and most of it runs down the street drain , some even water when raining.
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