• The Water Cycle
• Reclaimed Water
• Conservation Tips
• Rain Sensors
• Water Quality Report
• Student Activities
• Virtual Tour of Wakodahatchee
• Green Cay Wetlands

No, the sensor acts as a switch to break the circuit to the solenoid valves of the irrigation system when it has rained. This allows the timer to advance as scheduled, but keeps the valves from opening the water flow. Once the water has dried sufficiently, the switch closes again to allow for normal operation.

1. What is a rain sensor?
   
2. What is the ideal installation location for a rain sensor?
   
3. Is a rain sensor required?
   
4. Do I need a permit to install the rain sensor?
   
5. Will a rain sensor affect the schedule of my automatic timer?
   
6. Who can install rain sensors?
   
7. Where can I purchase a rain sensor for my sprinkler system?
   
8. What are the advantages of having a rain sensor?
   
9. How long will the system stay off after it rains?
   
10. Which setting do I use?
    
11. After it rains, sprinklers stay off too long. What is wrong?
    
12. Can I use 1 rain shut-off device for two controllers?
    
13. How long do the disks last?
    
14. Will I lose my controller settings if the rain sensor shuts my system off due to rain?
    

Courtesy of Dr. Dorota Hamon, Professor of Agricultural and Biological Engineering, University of Florida