OpenSprinkler Forums OpenSprinkler Unified Firmware Weather Adjustment Questions Reply To: Weather Adjustment Questions



You can find a complete description of Zimmerman’s algorithm on the support document page, specifically this page:

1) Zimmerman’s algorithm computes a watering percentage — a scaling factor that is multiplied with the user-set program water time. So it adjusts the duration and not frequency.

2) The baseline is set by the user — the user decides how long to water assuming average weather condition.