Up to 60% of total household water usage is for outdoor use here in the LA area. Some experts estimate that as much as 50% of this irrigation water is wasted due to runoff from inefficient irrigation systems and methods, from wind, or from evaporation.
Avoid spraying onto sidewalks, driveways, etc. Irrigation heads may need to be adjusted to prevent watering these areas.
Avoid excess runoff from your irrigation system into the streets and sidewalks. Slopes are susceptible to run off – this can be lessened by breaking the irrigation cycle into two shorter ones that are separated by a time interval that will allow the first cycle to soak in before starting the second cycle.
Replace older controllers with more modern ‘smart’ controllers that sense site conditions and automatically adjust irrigation scheduling. (For example, the controller would avoid watering during a rain storm).
Be sure that planting areas containing drought tolerant plants are watered less than high water turf areas. Established drought tolerant plants may be able to be taken completely out of the irrigation schedule during the wetter winter and early spring months.
Replace existing spray nozzles with more efficient rotating stream nozzles. DWP rebates are available for weather-based irrigation controllers, soil moisture sensor systems, and rotating nozzles.