I'll try checking the meter overnight for some days right away, and then some days again at the start of the next likely "elevated usage" part of the cycle and see what I come up with.
I've reviewed the irrigation timer meticulously one more time, and everything is fine there, though I...
Until June of this year, my monthly consumption was always right at 27,000 gals/month. Starting in June, every OTHER month my consumption increases almost exactly 10,000 gals.
I live by myself and have guests only 4-6 days per year. The only other usage variable I have any knowledge about...