Irrigation Zone Calculator — Formule
## Irrigation Zone Sizing
**Heads per Zone = Available GPM / GPM per Head**
**Zones = Total Heads / Heads per Zone**
Each zone runs one at a time, so the available water flow only needs to support one zone. Group heads with similar precipitation rates into the same zone for uniform coverage.
**Heads per Zone = Available GPM / GPM per Head**
**Zones = Total Heads / Heads per Zone**
Each zone runs one at a time, so the available water flow only needs to support one zone. Group heads with similar precipitation rates into the same zone for uniform coverage.
Exemple Résolu
24 heads at 2 GPM each, with 12 GPM available.
- Heads per zone = floor(12 / 2) = 6
- Zones = ceil(24 / 6) = 4 zones
- Each zone runs 6 heads at a time.