Garden & outdoors

Drip irrigation zone budget

Group whole drip lines within a supplied flow capacity.

Drip irrigation zone budget
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Comma-separated headings shown in the example. Up to 1,000 source rows; keep this project table small enough to review.

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A clear answer. Here’s how.

Calculates line flow from emitter count × supplied emitter flow, then first-fit packs complete lines into zones in input order. A single line exceeding the supplied capacity is rejected. Up to 1,000 lines. This is a flow budget heuristic, not a pressure/friction model or guarantee of emitter output; zone count may not be minimal.

See a worked example

Worked example

A fixed demonstration, separate from the values you enter above.

Project CSV
Line,Emitters,LitresPerHour
Bed A,24,2
Bed B,18,2
Bed C,30,2
Available flow per zone (L/h)
100

Example result

Example result
ZoneLineEmittersLine flow (L/h)Zone flow (L/h)
1Bed A244884
1Bed B183684
2Bed C306060

First-fit packing of whole lines in input order. Uses a supplied available flow budget; pressure, pipe friction and emitter performance are not modelled. This heuristic need not minimise zone count.

Keep going.

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