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THE FEUTEX TOOLKIT

Irrigation Catch-Can Uniformity

Compare four equal-area catch-can readings using a mean and low-quarter distribution metric.

Gardening workspace● Runs in your browser
01 Your input
02 Your result
View or copy raw result data
FormulaMean depth = (can_a+can_b+can_c+can_d)/4; Low quarter uniformity = 400*Math.min(can_a,can_b,can_c,can_d)/(can_a+can_b+can_c+can_d); Application rate = (can_a+can_b+can_c+can_d)/4/run_minutes*60

Worked example

Inputs

Can a
8 mm
Can b
10 mm
Can c
12 mm
Can d
10 mm
Run minutes
30 min

Expected results

Mean depth
10 mm
Low quarter uniformity
80 %
Application rate
20 mm/h

Load the example in the workspace to reproduce these results. Display rounding does not change the underlying calculation.

How to use this tool

  1. Enter the measured quantities and your own planning assumptions.
  2. Review all calculated outputs and the stated limitations.

Try this example

{
  "can_a": 8,
  "can_b": 10,
  "can_c": 12,
  "can_d": 10,
  "run_minutes": 30
}

Accuracy and scope

Four equal-area catch cans only; the lowest quarter is the lowest single reading. Small samples may not represent the full irrigated area. No watering recommendation.

Is my data uploaded?

This tool runs locally in your browser. Input and output are not sent to a processing server. Copy or download your result before leaving the page.