A ‘Smart’ or Weather-based Irrigation Controller can be an effective technology for reducing water usage outdoors. Unlike a standard automatic timer that turns on the sprinklers at set intervals, a ‘Smart’ Controller uses weather data and site information such as plant type and sprinkler system output to adjust watering times and frequency. The device may provide more efficient watering, reduce run-off and improve the health of a landscape. Some cities offer rebates for installing a Smart Controller or other water saving things in your system. Be sure to check with the city that you live in for these money saving opportunities.