This handy PDF will help you determine the length of time needed to provide one-inch of water to your lawn per week. Depending onyour local weather conditions more or less water may be required. As a rule of thumb, we’re using the recommendation of 1″ of water per week. These recommendations were tested at 40 PSI (pounds per square inch). It is assumed no other source of water would be received during the week (rain, sprinkler watering, etc.).
Recommended Sprinkler Durations [PDF -68KB]