I am using Flex Daily watering on a Gen 2 and we had a thunderstorm yesterday evening that added 0.85 inches of water to the five zones. At 8 PM I checked and each zone was 110% capacity and no watering was scheduled until six days later. Zone 2 (in the Shade) was not scheduled to run until 14 days later. That all made sense to me.
The next morning at 9 AM (after another brief downpour overnight that added another 0.1 inches of water) zones 1-5 are instead at 94-100-94-96-96% capacity. The scheduled next watering has also changed to 4-6-4-5-5 days after the rain storm.
I also notice that when Zone 3 (with fixed spray heads) is scheduled to water, it only schedules to water for 1 minute. That seems very odd. Advanced settings are 796 sq ft, 0.17 in/in, 6 in root depth, 50% allowed depletion, 80% efficiency and 1.5 Nozzle Inches Per Hour.
If you look at the moisture charts they show the natural progression of water evaporating from the yard. Once it hits zero the zone will water. The chart shows daily evapotranspiration which subtracts and irrigation which adds to the moisture levels. They can change daily due to forecasted information.
Can you try creating a new schedule with that zone? That doesn’t seem right.
I also had the engineering team review some of your zone run times and they seem fairly high which correlates to the inches/hr set on some of the zones. For example zone 1 has a a precip rate of .26in/hr which creates a 1 hour 54 minute runtime. Are you sure that is the precip rate for the zones?
Thanks very much for the reply. Your suggestion for Zone 3 (delete the schedule and then re-enter it) worked as you expected. The system now uses about 15 minute watering times for Zone 3 instead of one minute. As for the precipitation rate - I decided I should run the test again since it has been a year since I ran it. I ran the system for an hour and collected an average of 71.4 ml in each of the 16 square inch cups (11 total cups) in Zone 1, so by my calculation that is only 0.27 inches per hour. The water pressure in our area is fairly low, which is what I blame for the low rate and consequent need for long run times. Any other suggestions would be welcome!
