Rain Sensors for Lawn Sprinkler System and Irrigation Systems

Every April we get dozens of calls about Rain Sensors, either they are concerned their sprinkler is still running during a rain drizzle or there is a red light illuminated on their control box.  Rest assured, both are quite normal and common.  Rain Sensors are activated after 1/4 inch of rainfall and when this happens it de-activates your sprinkler system and a red light is illuminated.