La nouvelle vague
Though use of a simple rain sensor is adequate when it comes to preventing unnecessary irrigation events in automated systems, there are other more sophisticated options on the market to help reduce water waste.
Going underground: soil moisture sensor
The soil moisture sensor is a smart technology that uses continual real time moisture readings in the landscape to control whether a system will be allowed to water on schedule or not.
A well installed and calibrated soil moisture sensor prevents irrigation until additional water application benefits the landscape.
Similarly, an accurately programmed weather-based timer on a well designed system consistently replenishes the water that each irrigation zone loses to evaporation and transpiration.
And one more thing...acknowledgements!
Urban Conservation Unit
Our fearless leader at Water Resource Engineering, Dr. Migliaccio let me loose on a dream project that encompassed applied science, public education, customer service, urban travel and still/video media documentation and will influence whatever work I do heretofore.
Choose a job you love and you will never have to work a day in your life. Confucious