Last June 2021, my irrigation usage started increasing monthly, without any changes in the controller programs. My usage went from 6200 to 18,000 gallons in December 2021. When I arrived in early January 2022, I checked the program. It was a Rainbird controller, which was probably originally installed during construction (2009). When I was checking/adjusting the programming, it displayed numbers that I don't know where they came from. Like it had a mind of it's own. I couldn't even set the correct current time. I installed a Rachio controller in mid-January. Programming was a breeze. My current utility bill showed 2190 gallons used. I think the old Rainbird controller was the issue with my usage.
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