Hunter's EC controller comes with an Interval Watering feature. This Interval feature is set under the Water Days dial position on the controller. Interval Watering is a feature that allows you to select the number of days to pass before the next watering day.
Setting Interval Watering
With this option you can select interval watering from 1 to 31 days.
An interval of 3 will cycle the program once every three days and proceed to water on every third day from there on out. An interval of 1 is every day and an interval of 2 will water every other day. The controller will water the selected program at the next Start Time and will then water at the interval programmed.