1. Introduction
The Gardena Aqua L Rectangular Sprinkler is designed for reliable and even watering of large lawns. It efficiently irrigates rectangular and square garden areas, providing consistent results without puddles. This sprinkler is suitable for areas ranging from 120 m² to 280 m² with an adjustable range of 8 to 16 meters and a maximum spread of 16 meters.
2. Safety Information
Warning:
- Avoid contact with moving parts during operation.
- Ensure proper installation to prevent leakage.
- Keep out of reach of children.
3. Package Contents
Your Gardena Aqua L Rectangular Sprinkler package includes:
- 1x Gardena Aqua L Rectangular Sprinkler
- 1x Cleaning Needle (integrated into the end cap)
4. Setup
Follow these steps to set up your Gardena Aqua L Rectangular Sprinkler for optimal performance.
4.1 Connecting the Hose
The sprinkler features a quick-connect system for easy attachment to your garden hose.

Image: A hand connecting a garden hose to the Gardena Aqua L Rectangular Sprinkler's water inlet.
- Ensure the water inlet on the sprinkler is clear of debris.
- Attach your garden hose connector firmly to the sprinkler's water inlet.
- Verify the connection is secure to prevent leaks.
Video: Demonstrates how to set up the Gardena Oscillating Sprinkler, including connecting the hose. This video is relevant for the Gardena Aqua L model.
5. Operating Instructions
The Gardena Aqua L Sprinkler offers adjustable settings to customize your watering area.
5.1 Adjusting Spray Range
Use the control knob to adjust the spray range (length of the watered area) from 8 to 16 meters.

Image: A hand turning the red control knob on the sprinkler to adjust the watering range.
Video: Highlights the top features of the Gardena Sprinkler, including range adjustment. This video is relevant for the Gardena Aqua L model.
5.2 Adjusting Spray Width
The orange sliders on the sprinkler allow you to precisely control the spray width, ensuring water is directed only where needed.

Image: The Gardena Aqua L Sprinkler in operation, demonstrating its adjustable spray pattern across a lawn.
Video: Demonstrates how wide the Gardena Sprinkler sprays, showcasing its adjustable width feature. This video is relevant for the Gardena Aqua L model.

Image: An overhead view of the Gardena Aqua L Sprinkler positioned on a lawn.

Image: A close-up view of water jets emanating from the nozzles of the Gardena Aqua L Sprinkler.
6. Maintenance
Regular maintenance ensures the longevity and optimal performance of your sprinkler.
6.1 Cleaning the Metal Filter
The internal metal filter prevents dirt particles from entering the sprinkler. Clean it regularly to maintain water flow.
- Unscrew the water inlet connection.
- Carefully remove the metal filter.
- Rinse the filter under running water to remove any debris.
- Reinsert the clean filter and securely reattach the connection.

Image: A hand demonstrating the removal of the metal filter from the sprinkler's water inlet for cleaning.

Image: A diagram illustrating the process of detaching the water inlet and removing the filter for cleaning.

Image: A diagram depicting a hand rinsing the removed metal filter under a running water faucet.
6.2 Clearing Nozzles
If any spray nozzles become clogged, use the integrated cleaning needle to clear them.

Image: A hand using the integrated cleaning needle to clear a clogged nozzle on the sprinkler bar.

Image: A diagram illustrating the use of the cleaning needle to clear individual spray nozzles on the sprinkler.
7. Troubleshooting
If you encounter issues with your Gardena Aqua L Sprinkler, consider the following common solutions:
- Low Water Pressure: Check your water source and hose for kinks or obstructions. Ensure the metal filter is clean (refer to Section 6.1).
- Uneven Spray Pattern: Inspect nozzles for clogs and clear them using the cleaning needle (refer to Section 6.2). Verify that the spray width adjusters are set correctly.
- Limited Range: Ensure the range adjustment knob is set to the desired maximum. Check water pressure.
- Leaks: Confirm all hose connections are tight and that the sprinkler itself is not damaged.
8. Specifications
| Feature | Detail |
|---|---|
| Brand | Gardena |
| Model | Aqua L (18704-20) |
| Irrigated Area | 120 m² - 280 m² |
| Spray Range | 8 - 16 m (adjustable) |
| Max Spread | 16 m |
| Material | Plastic, Metal elements |
| Color | Black, Orange, Metallic |
| Item Dimensions (L x W x H) | 19.84 x 4.61 x 3.35 inches |
| Item Weight | 0.37 Kilograms |
| Maximum Pressure | 60 PSI |
| Maximum Flow Rate | 10 Liters Per Minute |
| Special Features | Built-in Metal Filter, Cleaning Needle, Frost-proof |

Image: A diagram of the sprinkler showing the adjustable range (8m - 16m) and the location of the filter.
9. Warranty
The Gardena Aqua L Rectangular Sprinkler comes with a 5-year warranty, ensuring quality and durability.

Image: A circular logo indicating a 5-year warranty for Gardena products.

Image: A circular logo indicating the product is frost-proof.

Image: A logo indicating the product is "Made in Germany".
10. Support
For further assistance, please refer to the official Gardena website or contact Gardena customer support.