How do I edit intervals on Flexible Monthly Schedules?

Flexible Monthly Schedules recommend a predictable monthly schedule using historical ET data to adjust the watering interval and duration on a monthly basis to follow seasonal changes; increasing frequency winter to summer and decreasing frequency summer to winter. Currently this schedule mode does not allow you to edit/change the recommended interval. This article will help explain how a simple adjustments to your zone settings will affect the automated frequency recommendation.

For our example we will use a cool season grass zone based in Golden, Colorado. Here are a couple of months with their watering frequencies.

Notice that April is on an 8 day interval while July is on a 4 day interval.

If you'd like to adjust your zone to be in eco-hero mode (water less frequency), or maybe the other direction where you have set it to a lush mode (water more frequently), the only Advanced Zone setting that we recommend changing is your crop coefficient.

How do I change the crop coefficient?

Crop coefficient is the ratio of evapotranspiration (ET) observed for the crop. ET is the sum of evaporation and plant transpiration from the Earth's land and ocean surface to the atmosphere. So, each crop has an adjustment factor for ET on how quickly water transpires. To adjust, select the zone you wish to edit via the  My Yard Card on the Dashboard, then select the Advanced Zone settings and scroll to the bottom of the screen; now you can adjust the crop coefficient. We recommend you test small; 10% +/- increments and then navigate back to the calendar view to see the actual affect. In this example we started at 75% and moved the crop coefficient dial down to 65% (net -10% adjustment). 

Now look at our new intervals for both months. April is now at a 11 day interval and July is at a 5 day interval, just by modifying crop coefficient. One simple dial can affect your entire year of watering.

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