Will, let me encourage you to do a test run on your sprinkler system. Start with the recommended times and see if you get any run off. At the time of the run off, that would be your timeframe for that zone. (Our front yard has a slope to it and water runs off pretty quick. So we have to water that zone with minimal time but more often, not to waste money with it going down the drain.) As others have said, there is no 1 correct answer other than pay attention to your minutes in each zone to see what your grass requires. Sometimes, you might even get help from your neighbors system because it sprays into your yard. My husband is always checking our system and he runs it manually.
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