We have one zone that is set up with a fixed schedule. It is a perennial plant zone that waters a flower bed at the front of our yard next to a sidewalk with full sun exposure. Due to this in July we had some plant stress showing up so I manually set the zone to water every day to help the plants out. The system set the watering time to 6m.
This morning seasonal shift was applied to this zone for August and the system set it to every 4 days for 23m. Since we’re still going to get 90deg days in August I thought this a little aggressive and changed the schedule to see what would happen with the times. When I set to every 2 days the time dropped to 8m. When I then set the interval back to 4 days, the time only went to 15m, quite a bit different than the 23m set by the season shift.
My question is, what’s up with this? Does manually touching the schedule change something about how the system calculates water requirements? If so this seems in error.