I have zoysa grass and I want to lay down 1 1/2" and I do this only once a week. To determine how long to run the system to put down 1 1/2 inches, I placed several glass jars around the area and determined how many minutes are needed to give the lawn 1 1/2 inches. Mine came to 90 minutes. It's important that the water gets down to the roots of the grass, so I run my system in 2 passes. I allow the first pass to soak down to the roots rather than have run-off.
On channel A is run the timer for 45 minutes....I have several zones of grass so each zone will get the 45 minutes. Then I repeat the same amount of time on channel B.
For my landscaping and flower beds, I will run those zones a total of 30 minutes......15 minutes on channel A and 15 minutes on channel B.
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