Adjusting Toro Super 800 Sprinkler Heads

The Toro Super 800 series sprinkler heads are a robust and widely used irrigation solution for residential and commercial landscapes. Proper adjustment is crucial to ensure efficient water distribution and maintain a healthy lawn and garden. This article provides a step-by-step guide to adjusting these sprinkler heads for optimal performance.
Understanding the Toro Super 800
Before making adjustments, familiarize yourself with the key components of the Toro Super 800 sprinkler head. These include:
- Nozzle: The nozzle determines the spray pattern and distance. Super 800 series heads utilize interchangeable nozzles to customize the coverage area.
- Adjustment Screw: Located on top of the sprinkler head, the adjustment screw controls the spray distance.
- Arc Adjustment: This mechanism, typically a collar or set of stops, determines the area covered by the spray pattern in degrees.
- Riser: The pop-up component that elevates the nozzle above the ground when the sprinkler is in operation.
Adjusting the Spray Distance
The spray distance is controlled by the adjustment screw located on the top of the sprinkler head. Use a small flathead screwdriver for this adjustment.
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Steps for Adjusting Spray Distance:
- Locate the Adjustment Screw: Identify the small flathead screw on top of the sprinkler head. It's usually marked with a "+" and "-" symbol.
- Increase Spray Distance: To increase the spray distance, turn the adjustment screw counter-clockwise. A small adjustment can make a significant difference.
- Decrease Spray Distance: To decrease the spray distance, turn the adjustment screw clockwise.
- Observe and Fine-Tune: Run the sprinkler system and observe the spray pattern. Make small adjustments and re-evaluate until the desired distance is achieved. Avoid overtightening or loosening the screw excessively, as this can damage the sprinkler head.
Note: Over-adjustment can lead to misting, which is inefficient and can promote fungal growth. Aim for a solid stream of water that reaches the desired distance without excessive misting.
Adjusting the Arc (Coverage Area)
The arc of the sprinkler head defines the portion of a circle that the sprinkler will water. Toro Super 800 sprinkler heads offer adjustable arcs, allowing you to customize the coverage area to fit your specific landscaping needs.

Identifying the Arc Adjustment Mechanism:
The location and type of arc adjustment mechanism can vary slightly depending on the specific Super 800 model. Generally, it will be located on the top of the sprinkler head or near the base. Look for a rotating collar or a set of adjustable stops.
Steps for Adjusting the Arc:
- Determine the Current Arc: Observe the sprinkler in operation to determine the existing arc. Note the start and end points of the spray pattern.
- Locate the Arc Adjustment Mechanism: Identify the rotating collar or adjustable stops responsible for setting the arc.
- Adjust the Arc:
- Rotating Collar: If your sprinkler head has a rotating collar, rotate it to increase or decrease the arc. The collar is typically marked with degree increments.
- Adjustable Stops: If your sprinkler head has adjustable stops, loosen the screws holding the stops in place and reposition them to define the start and end points of the desired arc. Tighten the screws securely after adjustment.
- Test and Refine: Run the sprinkler system and observe the spray pattern. Make small adjustments as needed to ensure the desired area is being watered effectively.
Important Considerations: Avoid setting an arc that sprays onto sidewalks, driveways, or buildings. Adjust the arc to cover only the intended landscaped areas.

Replacing the Nozzle
Replacing the nozzle is a critical aspect of customizing the spray pattern and flow rate of your Toro Super 800 sprinkler heads. Different nozzles provide varying spray distances and patterns.
Selecting the Correct Nozzle:
Toro offers a range of nozzles for the Super 800 series, each designed for a specific purpose. Consider the following factors when choosing a nozzle:
- Spray Distance: Choose a nozzle that provides the appropriate spray distance for your landscape.
- Spray Pattern: Select a nozzle that matches the desired spray pattern (e.g., full circle, half circle, quarter circle, rectangle).
- Flow Rate: Consider the flow rate of the nozzle in relation to your water pressure and the needs of your plants.
Steps for Replacing the Nozzle:
- Turn Off the Water Supply: Shut off the water supply to the sprinkler system before replacing the nozzle.
- Remove the Existing Nozzle: Most Toro Super 800 nozzles can be removed by gently unscrewing them or using a specialized nozzle removal tool (if provided).
- Install the New Nozzle: Carefully insert the new nozzle into the sprinkler head and screw it in securely. Avoid overtightening.
- Turn On the Water Supply: Turn the water supply back on and observe the spray pattern.
- Adjust the Spray Distance (if needed): Adjust the spray distance using the adjustment screw as described earlier.
Tip: Keep a set of spare nozzles on hand so you can quickly replace damaged or worn-out nozzles.

Troubleshooting Common Issues
Even with proper adjustment, you may encounter some common issues with your Toro Super 800 sprinkler heads.
Common Problems and Solutions:
- Sprinkler Head Not Popping Up: Check for debris obstructing the riser. Clean the riser and surrounding area. Ensure adequate water pressure.
- Low Water Pressure: Check for leaks in the irrigation system. Ensure the main water valve is fully open. Consider using a lower flow rate nozzle.
- Misting: Reduce the spray distance by turning the adjustment screw clockwise. Ensure the nozzle is properly installed and not damaged.
- Uneven Coverage: Adjust the arc to ensure proper overlap between sprinkler heads. Check for obstructions in the spray pattern. Clean the nozzle.
- Sprinkler Head Leaking: Check the seals and connections for damage. Replace any damaged components. Ensure the sprinkler head is properly installed.
If you are unable to resolve the issue yourself, consult a qualified irrigation professional.

Preventative Maintenance
Regular maintenance will extend the life of your Toro Super 800 sprinkler heads and ensure optimal performance.
Maintenance Tips:
- Inspect Regularly: Check sprinkler heads regularly for damage, leaks, and obstructions.
- Clean Nozzles: Clean nozzles periodically to remove debris and mineral buildup.
- Adjust as Needed: Adjust sprinkler heads as needed to compensate for changes in plant growth and landscaping.
- Winterize: Properly winterize your sprinkler system to prevent damage from freezing temperatures.
By following these maintenance tips, you can keep your Toro Super 800 sprinkler heads working efficiently for years to come.
Summary
Properly adjusting your Toro Super 800 sprinkler heads is essential for efficient water usage and a healthy landscape. By understanding the components of the sprinkler head, following the steps for adjusting the spray distance and arc, and performing regular maintenance, you can ensure that your lawn and garden receive the optimal amount of water. This not only saves water and money but also contributes to the overall health and beauty of your property.
