intermediate work · a cotton & pistachio farm west of Kettleman City, CA 93239
Catch-can distribution-uniformity audit -- a cotton & pistachio farm west of Kettleman City, CA 93239.
Fund it for $90. Proof lands onchain when it's done.
$90 proposed
Not funded yet. Settles as earned credit, $90 proposed.
- Proofcatch-can grid layout photo + collected-volume log + GPS + distribution-uniformity calc
- Open until2026-10-18
- Levelintermediate
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Not for you? Pledge backing · free Fund this work · $90
What the work involvesThis west-side cotton and pistachio farm's micro-sprinkler system has never had a distribution-uniformity check, and uneven coverage means some rows drink twice what others get while the San Joaquin Valley's water year tightens every summer.
How this work is done
A documented method, so this packet comes out the same whoever does it.
Bring
- matched catch cans (or cups)
- measuring cylinder / ruler
- pressure gauge
- stopwatch
- GPS phone
- camera
- data sheet
Steps
- 1. Confirm the site/zone; record GPS; identify the system type (sprinkler / drip / micro).
- 2. Sprinkler zones: lay catch cans on a grid across the zone, run the zone a fixed time, and measure the water depth in each can.
- 3. Compute distribution uniformity (low-quarter DU) from the catch-can depths.
- 4. Drip/micro zones: measure emitter flow at several points (fill a container over a fixed time) and inspect for clogs and leaks.
- 5. Read operating pressure at the zone; note leaks, broken/misaligned heads, and overspray onto pavement.
- 6. Review the run schedule against plant/soil need (over/under-watering, runoff).
- 7. Rank fixes (head repair, pressure regulation, schedule change) by water savings; record DU/emitter flow, pressure, leaks, schedule note, photos; sign.
What counts as done
- Catch-can grid layout photo across a representative block
- Collected-volume log per can after a timed run
- GPS / block confirm
- Distribution-uniformity calculation naming the follow-on retrofit job
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