How to prioritize which pivots to inspect first across a large district

If you're running sixty, a hundred, two hundred pivots across a district, you already know the math doesn't work. One crew, one truck, a finite number of daylight hours, and every span out there is a candidate for a bad nozzle or a dragging tower. Driving the circuit on all of them every week isn't a staffing problem you can hire your way out of. It's a triage problem, and most districts solve it by instinct: whoever called in a complaint gets a visit first, and everything else waits its turn.

That works until the quiet pivots are the ones losing water right compliance or yield, and nobody called.

Sort by pattern, not by pivot number

The shape of a problem tells you what's wrong before you drive out. A wedge-shaped dry sector that starts at the pivot point and widens toward the end gun is usually a clogged or worn nozzle on one tower. A ring of stress at a consistent radius, the same distance out on every pass, points to pressure loss further down the span, not a single nozzle. A dry patch that doesn't follow the pivot's arc at all, square-edged instead of curved, is probably a valve or a wiring fault stopping the circuit from completing its sweep.

None of these patterns require someone standing in the field to see them. A weekly sector report built against each pivot's own geometry shows which quadrant is dry and which is running wet, and the shape alone narrows down what's likely broken before a crew rolls a truck. That's the first filter: pivots showing a pattern this week versus pivots that look the same as last week's pass.

Weight the list by what's actually at stake

Pattern tells you something's wrong. It doesn't tell you which "something's wrong" to fix today versus next week. For that, stack three more things on top of the sector report:

Crop stage matters more than most triage lists admit. A dry sector on a field at tasseling or bulking is a different clock than the same dry sector on ground that was just planted. Growers on critical-stage fields move to the top regardless of how big the dry spot looks on the report.

Water right exposure is the second filter. If a grower's draw is already close to their allocation, an over-irrigated sector isn't just wasted water, it's a compliance number you'll have to explain at the end of the season. Those pivots move up the list even when the dry-spot area is small.

Repeat offenders move up too. A pivot that showed the same wedge two weeks running has already had a chance to self-correct (debris clearing, pressure stabilizing) and didn't. That's worth a visit before a pivot that only just started showing a pattern this week.

Build the actual list

Put those three filters, pattern severity, crop-stage urgency, and repeat-week status, against every pivot in the district and you get something closer to a dispatch sheet than a map. The pivots with no change week over week drop to the bottom, or off the list entirely, freeing the crew to spend their hours on the handful that actually need eyes on a nozzle or a tower.

Driving a circuit still earns its place once something's genuinely wrong out there. What changes is which circuit gets that drive first, and which ones can sit another week while the next pass confirms whether the pattern is getting worse or clearing up on its own. A per-pivot sector report run weekly against each pivot's own geometry gives you that ranked list without a crew spending a day confirming what a dry sector already shows.

If you're deciding which pivots to put a truck on this week, start with the report instead of the odometer.