This is related to my recent inquiry…
That being said something doesn’t seem right to me, since running that zone for 15 minutes should produce less than 1 cm, due to efficiency setting. Are you sure there weren’t any other irrigation events other than that? If you click on the arrow on the left of the word irrigation on your soil moisture chart, it should expand and show if there were any other irrigation events other than the flex. It just seems like it ran for 25 minutes total not 15.