I’m a new Rachio user and I installed a CST FSI-T10 water flow sensor in my main irrigation line to detect possible leaks but also to measure irrigation water consumption.
After some initial tests comparing the CST measurements reported on the Rachio App against the city water meter, by running the sprinklers for a few minutes, I noticed that the flow sensor consistently overestimated the consumption by 10-15%.
Last month I was traveling for about 3 weeks, and I wrote down the exact numbers right before I left and immediately after I returned, since the only water usage during that time was my irrigation system.
The city meter showed a water consumption of 3601 gallons, whereas the the Rachio app showed 4056 gallons.
That gives me an exact number of how much off is the flow sensor measurement compared to the city meter: 4056/3601 = 1.126 or 12.6% overestimation.
My question: How can I calibrate my Rachio controller to measure the correct consumption based on that information?
The Rachio app does provide an option to calibrate the controller but there should be a way to do that programmatically.
I would appreciate your help!
P.S. I have tested the wires for possible short-circuits using a multimeter and they seem clean.