climate. n. 1. (Physical Geography) the long-term prevalent weather conditions of an area, determined by latitude, position relative to oceans or continents, altitude, etc. 2. (Physical Geography) an area having a particular kind of climate. 3. a prevailing trend or current of feeling: the political climate.
To achieve this goal most spray head zones (sprinklers that do not rotate) need to run approximately 15 minutes and rotor zones (sprinklers that do rotate) need to run approximately 45 minutes. If you have much slope on your lawn areas you may need to run 2 cycles but with shorter run times on the zones.
This tutorial uses GPM as the flow measurement. Metric countries use liters per minute (l/m) to measure flow. Multiply GPM x 3.78 to get liters per minute. There are obvious advantages to having a higher flow rate available for your sprinkler system. Increasing your available water supply will reduce the number of valves you need, which could result in a less expensive controller, less wire, and, in general, a lower cost.