Irrigation verificationSep 16, 2026
How to Verify a Missed OpenSprinkler Irrigation Event
A practical evidence checklist for separating a pending event, a missed event, a short runtime, and a controller-program mismatch.
Read field noteGrower Field Notes
Practical irrigation intelligence from the grow room.
Original field guidance on crop steering, measured delivery, plant response, and safe OpenSprinkler automation. Every note is reviewed through a grower’s operating lens.
OpenSprinklerAug 20, 2026
Why OpenSprinkler Preflight Must Match the Visible Schedule
How schedule-source proof prevents stale times, flattened runtimes, and incomplete zone programs from reaching a controller.
Read field noteFlow calibrationAug 19, 2026
How to Measure Emitter Flow Before Trusting Irrigation Runtime
A practical method for converting a timed catch test into the flow value used to calculate cannabis irrigation runtime.
Read field noteCrop steeringAug 18, 2026
P1, P2, and P3 Cannabis Irrigation Explained
A grower-focused explanation of substrate recharge, maintenance irrigation, and the planned dryback window.
Read field noteStart with the operating question
Crop steering, controller programming, and plant-response measurements solve different parts of the irrigation day. These guides connect the biological target, the measured delivery, and the controller evidence without treating them as one hidden calculation.
Build the crop-day plan
See how stage, substrate, flow, and response become visible P1, P2, and P3 events.
Connect OpenSprinkler
Understand the preflight, translation, persistence, and execution checks around controller deployment.
Interpret plant response
Keep runoff, dryback, VWC, and EC measurements distinct and scoped to the table that produced them.