T Tulead ADD03722
T Tulead Dual Flush Valve User Manual
Brand: T Tulead | Model: ADD03722
Introduction
This user manual provides comprehensive instructions for the installation, operation, and maintenance of your T Tulead Dual Flush Valve. Please read this manual thoroughly before installation and keep it for future reference. This product is designed as a replacement part for two-piece toilets, offering efficient dual-flush functionality.
Product Overview

Figure 1: T Tulead Dual Flush Valve, showing its overall design.
Key Features
- Dual Flush Design: Offers both full flush for powerful clearing and half flush for water conservation, allowing control over water consumption.
- Compatibility: Specifically designed for two-piece toilets.
- Easy Installation: Engineered for straightforward replacement in compatible toilet systems.
- Durable Material: Constructed from plastic for long-lasting performance.
Components
The T Tulead Dual Flush Valve consists of the main valve body, an overflow tube, and a sealing gasket. The blue internal mechanism allows for adjustment of flush volumes.

Figure 2: Bottom view of the flush valve, showing the sealing gasket and drain connection.

Figure 3: Close-up of the internal blue adjustment mechanism for flush volume control.

Figure 4: Side view of the flush valve base, illustrating its structural design.
Setup and Installation
This dual flush valve is designed for easy replacement in two-piece toilets. Ensure the toilet tank is empty and disconnected from the water supply before beginning installation.
- Prepare the Toilet: Turn off the water supply to the toilet and flush to empty the tank. Disconnect the water supply line from the fill valve.
- Remove Old Valve: Unscrew the nuts holding the toilet tank to the bowl (if applicable) and carefully lift the tank off. Remove the old flush valve by unscrewing its mounting nut from underneath the tank. Clean the area around the drain hole.
- Install New Valve: Place the new T Tulead Dual Flush Valve into the drain hole from inside the tank, ensuring the sealing gasket is properly seated. From underneath the tank, secure the valve with its mounting nut, tightening it firmly but not excessively to avoid cracking the tank.
- Reassemble Toilet: Reattach the toilet tank to the bowl (if removed) and reconnect the water supply line to the fill valve.
- Adjust Water Level: Turn on the water supply and allow the tank to fill. Check for leaks. Adjust the water level in the tank if necessary, typically to the waterline marked inside the tank or just below the overflow tube.
- Test Flush: Perform several test flushes to ensure proper operation of both full and half flush modes.

Figure 5: Visual guide for adjusting the flush valve. The top left image shows the valve top, top right shows opening the top cover, bottom left shows the internal mechanism, and bottom right shows the mechanism after adjustment.
Operating Instructions
The T Tulead Dual Flush Valve provides two flushing options to optimize water usage:
- Full Flush: Press the flush button completely down for a full flush. This releases the maximum amount of water from the tank for solid waste.
- Half Flush (Water-Saving): Press the flush button partially down for a half flush. This releases a reduced amount of water, ideal for liquid waste, saving water with each flush.
The flush volume for both full and half flushes can be adjusted using the internal mechanism (refer to Figure 3 and 5 for visual guidance). This allows you to fine-tune water usage based on your needs.
Maintenance
Regular maintenance ensures the longevity and optimal performance of your dual flush valve:
- Cleaning: Periodically inspect the valve for mineral buildup or debris. Turn off the water supply, drain the tank, and gently clean the valve components with a soft brush and mild cleaner. Avoid abrasive chemicals.
- Seal Inspection: Check the rubber seals and gaskets for wear or damage. Replace them if they appear cracked or brittle to prevent leaks.
- Water Quality: Hard water can lead to mineral deposits. Consider using a toilet bowl cleaner that helps prevent buildup, but ensure it is safe for plastic components.
Troubleshooting
If you encounter issues with your dual flush valve, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Toilet runs continuously or refills slowly. |
|
|
| Weak flush. |
|
|
| Dual flush not working correctly. |
|
|
If the problem persists after attempting these solutions, it may be necessary to consult a professional plumber or replace the unit.
Specifications

Figure 6: Key dimensions of the T Tulead Dual Flush Valve.
| Attribute | Detail |
|---|---|
| Material | Plastic |
| Height | 250mm (9.84") |
| Fit for Toilet Tank Height | 260-290mm (10.2"-11.4") |
| Fit for Drain Hole Size | 60-75mm (2.4"-2.9") |
| Toilet Type Compatibility | 2-piece toilet |
| Inlet Connection Size | 2.36 Inches |
| Inlet Connection Type | Flange |
| Outlet Connection Type | FNPT |
| Number of Ports | 2 |
| Outlet Connection Size | 0.5 Inches |
| Item Weight | 10.7 ounces |
| Model Number | ADD03722 |
Warranty and Support
Specific warranty information for the T Tulead Dual Flush Valve is not provided in this manual. For warranty details or technical support, please refer to the product packaging or contact T Tulead customer service directly through their official channels or the retailer from whom the product was purchased.
You can visit the T Tulead Store on Amazon for more product information and contact options.
Ask a question about this manual
Ask about setup, troubleshooting, compatibility, parts, safety, or missing instructions. Manuals+ will review the question and use this page’s manual context to help answer it.