Troubleshooting Sprayer Calculator

Protect important work first

If the project contains significant unsaved work and Save Project is available, create a .ra file before reloading, clearing the session, or making major changes.

Common issues

Per-tank amount looks wrong

Confirm product rate units, target GPA, tank size, and whether the rate is per acre or per 100 gallons.

GPA from calibration is unexpected

Check boom width/nozzle spacing and count, travel speed, nozzle GPM, and catch-test volume/time units.

Last tank amount is larger than expected

Verify project acres and acres-per-tank. The last tank should reflect only the remaining acres.

Cost per acre is wrong

Check package size/price units, application rate, and whether labor/equipment/fuel are entered per hour or as another cost basis.

If the result still does not make sense

Return to the primary inputs and verify units, then open View Calculation Details where available. Compare the displayed formula inputs with the values you intended to enter. Next, remove nonessential Advanced assumptions and add them back one at a time.

If a map feature is involved

Check geometry at close zoom, layer visibility, and whether the correct feature is selected. A misplaced point or duplicate feature can materially change area, distance, or cost results.

If export or project saving fails

Use the shared Help Center articles for .ra project compatibility, browser downloads, PDF/Print, CSV, PNG/Map, and GeoJSON troubleshooting.

Planning note

The pesticide or herbicide label is the controlling source for legal rate, PPE, restrictions, re-entry, grazing/haying intervals, environmental precautions, and tank-mixing requirements. RanchAssist does not recommend products or off-label rates; users must enter the label rate themselves.


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