Use the same values to calculate the Run Time per interval:
Watering cool season turf with an 8-inch (0.66 ft) root zone, and a crop coefficient of 0.70. Soil is clay loam with available water of 1.00 in/ft with a slight slope. Precipitation rate is 0.5 in/hr. Your location has a daily moisture loss (ET) rate of 0.12 inches. The application efficiency is 68%. MAD = 50%. Use a 2-day interval.
Run Time = (60 x F x ET x Kc) / (PR x EA)
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