Irrigation Product Manuals & Customer Resources
Find the Right Manual for Your Irrigation System
Controller Manuals
Current controller guides
Sprinklers, Nozzles & Valves
Rotor, spray head, and valve manuals
Rain Sensor Manuals
Hard wired and wireless sensors
Older Controllers
Legacy and discontinued products
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Need help identifying a manual?
1. Current Controller Manuals
Rain Bird
Rain Bird Controllers
Hunter
Hunter Controllers
2. Sprinklers, Nozzles & Electric Valves
Hunter
Hunter Sprinklers & Valves
Rain Bird
Rain Bird Sprinklers & Valves
3. Rain Sensor Manuals
Wireless Sensors
Hunter / Irritrol Sensors
4. Older / Discontinued Controllers
Need Help With Your Irrigation System?
Frequently Asked Questions
How do I know which irrigation controller manual I need?
Look for the model name on the controller faceplate, inside the cabinet door, or near the wiring terminals. If you are unsure, Koster Irrigation can help identify your system.
Can Koster Irrigation help program my controller?
Yes. Koster Irrigation can help with controller programming, troubleshooting, repairs, and system adjustments.
Do these manuals apply to older irrigation systems?
Some manuals are for current products, while others are for older controllers that may no longer be in production.
What should I do if my rain sensor is not working?
Check the sensor model and review the manual first. If the system still does not respond correctly, the sensor, wiring, or controller settings may need professional inspection.
Should I replace an older irrigation controller?
Older controllers may still work, but smart controllers often provide better water management, scheduling, and seasonal adjustment options.