Deliveries are scheduled based on a fixed interval. These intervals can be different during summer and winter.
Example: Let's say you want deliveries to be made to a particular tank on a regular basis . . . every 4 weeks in the summer and every 2 weeks in the winter. This would be entered like this:
Note: It's up to you to tell the system if you want it to use either the Summer or Winter interval (depending on the time of year) by selecting one or the other in Routing Preferences. Like this:
Go to Set Up Routing Preferences for help on this.