Introduction
This manual provides essential information for the proper installation, operation, and maintenance of your Orbit 16-30 inch Metal Adjustable Shrub Sprinkler Riser. Please read these instructions carefully before use to ensure optimal performance and longevity of the product.
Safety Information
- Always turn off the water supply before installing or performing maintenance on the sprinkler riser.
- Wear appropriate personal protective equipment, such as gloves, during installation to prevent injury.
- Ensure all connections are secure to prevent leaks and water waste.
- Keep out of reach of children when not in use.
Package Contents
Verify that all components are present before beginning installation:
- Orbit 16-30 inch Metal Adjustable Shrub Sprinkler Riser (Quantity: 3)
Note: Sprinkler nozzles are sold separately and are not included with this riser.
Setup and Installation
Follow these steps to properly install your adjustable shrub sprinkler riser:
- Prepare the Area: Identify the desired location for the sprinkler riser. Ensure the ground is clear of debris and obstructions.
- Connect to Water Source: Attach the bottom (male threaded) end of the riser to a 1/2-inch female threaded pipe or fitting in your irrigation system. Hand-tighten first, then use a wrench for a secure, leak-free connection. Do not overtighten.
- Attach Sprinkler Nozzle: Screw your desired 1/2-inch female threaded sprinkler nozzle onto the male threaded top end of the riser. Hand-tighten securely.
- Adjust Height: The riser can be adjusted from 16 to 30 inches. To adjust, gently pull or push the inner shaft to the desired height. The friction fitting will hold it in place.
- Test System: Slowly turn on the water supply and check for any leaks at the connections. Adjust connections as necessary. Observe the sprinkler pattern and make any final adjustments to the riser height or nozzle direction.

Operating Instructions
Once installed, the Orbit adjustable shrub sprinkler riser operates as part of your irrigation system. Its primary function is to elevate sprinkler nozzles to the appropriate height for optimal water distribution over shrubs and plants.
- Water Pressure: Ensure your irrigation system operates within the recommended pressure range for your chosen sprinkler nozzles. The riser itself is designed to withstand up to 100 PSI.
- Coverage: Periodically check the watering pattern to ensure adequate coverage and to identify any areas that may be over or under-watered. Adjust the riser height or nozzle as needed.
Maintenance
Regular maintenance helps ensure the longevity and efficiency of your sprinkler riser:
- Seasonal Checks: Inspect risers at the beginning of each watering season for any signs of damage or wear.
- Cleaning: If the riser becomes dirty, wipe it with a damp cloth. Avoid using harsh chemicals that could damage the material.
- Winterization: In freezing climates, ensure your irrigation system, including risers, is properly drained and winterized to prevent damage from ice expansion.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Water leaks at connections | Loose connections, damaged threads, missing or worn seals. | Tighten connections. Inspect threads for damage; replace if necessary. Ensure proper use of thread sealant tape (not included) or rubber washers. |
| Riser does not hold adjusted height | Internal friction mechanism worn or dirty. | Clean the riser by flushing with water. If the issue persists, the riser may need replacement. |
| No water flow from nozzle | Clogged nozzle, insufficient water pressure, main water supply off. | Clean or replace the nozzle. Check water pressure. Ensure the main water supply is on. |
Specifications
- Model Number: 37333
- Adjustable Height: 16 to 30 inches
- Material: Aluminum, Metal
- Inlet/Outlet Connection Size: 1/2 inch MPT (Male Pipe Thread)
- Maximum Pressure: 100 PSI
- Color: Gray (product appears green in images)
Warranty Information
Orbit products are manufactured to high-quality standards. For specific warranty details, please refer to the warranty statement provided with your purchase or visit the official Orbit website. Keep your purchase receipt as proof of purchase for any warranty claims.
Support
If you have any questions or require assistance with your Orbit 16-30 inch Metal Adjustable Shrub Sprinkler Riser, please contact Orbit customer support:
- Website: www.orbitonline.com
- Refer to the product packaging for additional contact information.