Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of the Raindrip S5900UB Smart Loc Universal Swivel Adapter. This adapter is designed to connect supply tubing or dripline to a 3/4-inch Male Hose Thread (MHT) connection, such as a faucet or pressure regulator, for drip irrigation systems. Its unique design accommodates multiple tubing sizes and features a 360-degree swivel to prevent kinking.
Product Features
- Universal Compatibility: Connects to 1/2 inch, 5/8 inch, or 0.710 inch supply tubing and dripline sizes.
- Swivel Design: The blue swivel end rotates 360 degrees to prevent tubing from kinking or bending during installation and use.
- Secure Connection: Attaches with a secure seal, handling water pressures up to 50 psi.
- Integrated Filter Washer: Includes a filter washer to help prevent debris from entering the drip system.
- Durable Material: Made of Acrylonitrile Butadiene Styrene (ABS) treated with UV inhibitors for extended outdoor life.
- Reusable: Designed for repeated use.

Image: The Raindrip S5900UB Smart Loc Universal Swivel Adapter, showing its black body and blue swivel nut.
Setup and Installation
Follow these steps to properly install your Smart Loc Universal Swivel Adapter:
- Prepare the Tubing: Ensure the end of your 1/2 inch, 5/8 inch, or 0.710 inch supply tubing or dripline is cut cleanly.
- Attach to Tubing: Insert the barbed end of the adapter firmly into the drip tubing. It may require some force to ensure a tight fit.
- Secure the Tubing: Screw the nut onto the tubing over the barbed end to further secure the connection and prevent leaks.
- Connect to Water Source: The blue swivel end is threaded (3/4-inch MHT). Screw this end onto your faucet, pressure regulator, or timer. Hand-tighten only.
- Check for Leaks: Turn on the water supply and inspect all connections for any leaks. Adjust if necessary.

Image: Close-up view of the blue swivel end, showing the internal filter washer and 3/4-inch MHT threads.

Image: Close-up view of the barbed end, designed to securely fit various sizes of drip irrigation tubing.
Operating Instructions
Once installed, the Smart Loc Universal Swivel Adapter functions as a reliable connection point for your drip irrigation system. The 360-degree swivel feature allows for flexible positioning of your tubing, reducing the risk of kinks and ensuring optimal water flow. Ensure your water source is turned on when irrigation is desired.
Maintenance
The Smart Loc Universal Swivel Adapter requires minimal maintenance. Periodically check the filter washer located within the blue swivel end for any accumulated debris. If the filter appears clogged, remove it, rinse it under clean water, and reinsert it. The adapter is reusable and designed for long-term outdoor use, thanks to its UV-inhibited ABS construction.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Water leakage at the faucet connection. | Loose connection, damaged filter washer, or missing filter washer. | Ensure the blue swivel end is tightly screwed onto the faucet. Check if the filter washer is present and undamaged; replace if necessary. |
| Water leakage at the tubing connection. | Tubing not fully inserted onto the barbed end, or the securing nut is loose. | Push the tubing further onto the barbed end until it is snug. Tighten the securing nut. Ensure tubing size is compatible. |
| Reduced water flow through the system. | Clogged filter washer. | Remove and clean the filter washer. |
| Tubing kinking near the adapter. | Improper positioning or excessive tension. | Utilize the 360-degree swivel feature to adjust the tubing's angle and relieve tension. |
Specifications
- Model Number: S5900UB
- Material: Acrylonitrile Butadiene Styrene (ABS) with UV inhibitors
- Color: Black/Blue
- Connector Type: Adapter
- Faucet Connection: 3/4-inch Male Hose Thread (MHT)
- Tubing Compatibility: 1/2 inch (0.520 in. ID, 0.620 OD), 5/8 inch (0.600 in. ID, 0.700 in. OD), and 0.710 inch (0.620 in. ID, 0.710 in. OD) supply tubing and dripline
- Maximum Pressure: Up to 50 psi
- Dimensions (L x W x H): Approximately 1.2 x 1.2 x 3 inches
- Included Components: Smart Loc Universal Swivel Adapter, Filter Washer
Warranty Information
Raindrip stands by their product and offers a 1-year, 100% satisfaction guarantee. If your product breaks within this period, Raindrip will send you a new one for free; shipping and handling charges may apply. Please retain your proof of purchase for warranty claims.
Support
For further assistance, technical support, or to inquire about replacement parts, please visit the official Raindrip website or contact their customer service department. Refer to the product packaging for specific contact details or visit the Raindrip Store on Amazon for more information.



