There are several factors to consider, such as the type of sprinkler, sun vs shade, soil types and
slope. For clay soil or steep slopes, you may want to split the daily water allowance into two run times to allow
for saturation. Simply run the problem zones for half the desired time on the first start time, then run them again
immediately after on a second start time.
My general recommendation is to water daily (within two hours of dawn) as follows:
- Spray heads between 5 to 10 minutes per zone.
- Rotor heads between 15 to 30 minutes per zone.
- Drip 10 minutes, three times per day. Example: 10 min. at 6am, 10 min. at Noon and 10 min. at 4pm.
Remember, just because 10 is a nice round number that doesn't make it the best watering time. Experiment a little, try paring off a minute or two at a time to get the desired effect from each individual zone. Your sprinkler system is using anywhere from 8 to 15 gallons per minute for every minute it runs! 7 or 23 might be a perfectly acceptable and cost effective number even if it's not round.
Finally, sun will burn a lot of plants leaves if they get wet in the heat of the day. Set your controller to run when the sun is low or off the plants altogether such as in the early morning or late afternoon. Always water no earlier than two hours before dawn or no later than two hours before sunset. Plants leaves should not be wet all night as this can promote disease and fungus. My preference is early morning.
If you have any more questions please call or stop by, we would be happy to answer them.