Introduction
The Tribest Duet Water Revitalizer DU-420 is an appliance designed to process water using a natural spiral movement. This process aims to return water to a liquid crystalline state, enhancing its properties. This manual provides essential information for the safe and effective setup, operation, and maintenance of your Duet Water Revitalizer.
Product Overview and Components
Before initial use, ensure all components are present and undamaged. The Tribest Duet Water Revitalizer DU-420 includes the following parts:
- Lid
- Pitcher (BPA-Free)
- Spinner and Silicone Ring
- Mineral Basket
- Vitalizer Base

Figure 1: The BPA-free pitcher component of the Tribest Duet Water Revitalizer, designed for safe water containment.
Setup Instructions
- Unpack: Carefully remove all components from the packaging.
- Placement: Position the Vitalizer Base on a stable, flat, and dry surface.
- Assemble Pitcher: Insert the spinner into the pitcher, followed by the silicone ring to secure it. Place the mineral basket into its designated slot within the pitcher.
- Fill with Water: Fill the assembled pitcher with water up to the maximum fill line.
- Place Pitcher on Base: Carefully place the filled pitcher onto the Vitalizer Base, ensuring it is seated correctly.
- Connect Power: Plug the power cord into a standard 110V electrical outlet.

Figure 2: Illustration of the control panel and the three main setup steps: connect the machine, fill with water, and select the time setting.
Operating Instructions
The Tribest Duet Water Revitalizer offers three settings to customize the water processing duration.
- Power On: Press the 'Power' button on the Vitalizer Base to turn on the unit.
- Select Setting: Use the 'Minute' button to cycle through the three available time settings. The selected duration will be displayed on the unit's screen.
- Start Process: Press the 'Start/Stop' button to begin the water revitalization cycle. The water will begin to swirl, creating a vortex.
- Cycle Completion: The unit will automatically stop once the selected cycle duration is complete.
- Serve: Carefully remove the pitcher from the base and pour the revitalized water.

Figure 3: The Tribest Duet Water Revitalizer displaying its three operational settings, allowing for customized water processing.

Figure 4: The Tribest Duet Water Revitalizer actively processing water, illustrating the natural spiral movement within the pitcher.

Figure 5: A detailed view of the natural spiral movement created by the revitalizer, designed to achieve a liquid-crystalline water state.
Maintenance
Cleaning
- Always unplug the unit before cleaning.
- The pitcher, lid, spinner, silicone ring, and mineral basket can be washed with warm, soapy water. Rinse thoroughly.
- Do not immerse the Vitalizer Base in water. Wipe the base with a damp cloth.
- Ensure all parts are completely dry before reassembly or storage.
Mineral Basket Replacement
The mineral basket has an estimated lifespan of approximately 3500 minutes of use or 380 cycles. Replace the mineral basket when its effectiveness diminishes or after reaching its estimated lifespan to ensure optimal performance.
Troubleshooting
- Unit Does Not Power On: Verify that the power cord is securely plugged into both the unit and a functional 110V electrical outlet.
- Water Not Swirling: Ensure the pitcher is correctly seated on the base and the spinner is properly installed.
- For any other operational issues, please refer to the warranty and support information provided.
Specifications
| Model Number | DU-420 |
| Voltage | 110V |
| Weight | 5.6 lbs (2.54 kg) |
| Dimensions (L x W x H) | 10.83 x 10.83 x 14.57 inches |
| Pitcher Capacity | 2.2 Liters (0.6 Gallons) |
| Mineral Basket Lifespan | Approximately 3500 minutes / 380 uses |
| Material | BPA-Free Pitcher |
Warranty and Support
The Tribest Duet Water Revitalizer DU-420 comes with a 5-year warranty from the date of purchase.
For warranty claims, technical support, or replacement parts, please contact Tribest customer service. Refer to the official Tribest website or your purchase documentation for current contact information.