Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your AVSIILE Matte Black Waterfall Bathroom Faucet, Model AV-8301BK. This 3-hole, 8-inch widespread faucet features a modern curved spout design, providing a waterfall flow ideal for daily bathroom tasks. Constructed from solid stainless steel with a matte black finish, it ensures durability and reliability. Please read this manual thoroughly before installation and use to ensure proper function and longevity of your faucet.
Safety Information
- Always turn off the main water supply before beginning any installation or maintenance.
- Wear appropriate personal protective equipment, such as safety glasses and gloves, during installation.
- Ensure all connections are secure to prevent leaks. Do not overtighten.
- If you are unsure about any part of the installation process, consult a qualified plumber.
- Keep small parts away from children.
Package Contents
Verify that all components are present before beginning installation:

Figure 1: Included Components
- Widespread Bathroom Faucet (Main Spout and Handles)
- Pop Up Drain
- Wrench
- A Pair of Gloves
- Teflon Tape
- Quick Connection Hose
- Faucet Supply Lines
- Instruction Manual (this document)
Specifications
| Feature | Specification |
|---|---|
| Brand | AVSIILE |
| Model Name | AV-8301BK |
| Finish Type | Matte Black |
| Material | Stainless Steel, Zinc (Handle) |
| Mounting Type | Deck Mount |
| Hole Count | 3 |
| Number of Handles | 2 |
| Spout Design | Waterfall, Curved Spout |
| Maximum Flow Rate | 1.2 Gallons Per Minute |
| Product Dimensions | 4.33"D x 8"W x 5.77"H |
| Spout Height | 2.76 Inches |
| Spout Reach | 5.91 Inches |
| Hose Length | 24 Inches |
| Special Features | Lead Free, Pop Up Drain, Tarnish Resistant |

Figure 2: Internal Valve Structure
Installation
Before installation, ensure your sink has three holes with a recommended spread of 8 to 16 inches. The maximum deck thickness should not exceed 1.2 inches, and hole sizes should be between 1.26 and 1.38 inches.

Figure 3: Faucet Dimensions and Hole Requirements
Installation Steps:
- Prepare the Sink: Ensure the sink surface is clean and dry. Confirm the three mounting holes meet the specified dimensions.
- Install Handles: Insert the hot and cold water handles into the outer holes of the sink. Secure them from underneath the sink using the provided washers and nuts.
- Install Main Spout: Place the main spout into the center hole. Secure it from underneath with the washer and nut.
- Connect Water Lines: Connect the quick connection hose between the main spout and the two handles. Then, attach the faucet supply lines to the handles and your home's hot and cold water supply. Ensure all connections are hand-tightened, then use a wrench for a final snug turn.
- Install Pop-Up Drain: Apply plumber's putty or silicone sealant around the top edge of the drain body and insert it into the sink's drain hole. From underneath, secure the drain with the rubber washer and locking nut.
- Test for Leaks: Turn on the main water supply and check all connections for leaks. Run water through the faucet to ensure proper operation.
Video 1: Installation guide for the AVSIILE Waterfall Bathroom Faucet.

Figure 4: Faucet Installation Diagram
Operating Instructions
The AVSIILE AV-8301BK faucet features a two-handle design for precise control over water flow and temperature. The curved spout delivers a gentle waterfall stream.
Water Flow and Temperature Control:
- Hot Water: Use the left handle to control the hot water. Turn the handle to open the flow and adjust the intensity.
- Cold Water: Use the right handle to control the cold water. Turn the handle to open the flow and adjust the intensity.
- Temperature Mixing: Adjust both handles simultaneously to achieve your desired water temperature.

Figure 5: Waterfall Flow in Operation

Figure 6: Handle Operation Directions
Maintenance
Proper care and maintenance will ensure the long-lasting beauty and performance of your AVSIILE faucet.
Cleaning Instructions:
- Clean the faucet regularly with a soft cloth and mild soap.
- Avoid using abrasive cleaners, harsh chemicals, or scouring pads, as these can damage the matte black finish.
- Rinse thoroughly with clean water after cleaning and dry with a soft cloth to prevent water spots.
- For stubborn water spots, a solution of equal parts white vinegar and water can be used, followed by thorough rinsing.

Figure 7: Finish Durability Features
Troubleshooting
If you encounter any issues with your faucet, refer to the common problems and solutions below:
| Problem | Possible Cause | Solution |
|---|---|---|
| Low Water Flow | Clogged aerator or supply lines. | Clean or replace the aerator. Check for kinks or blockages in supply lines. Ensure water shut-off valves are fully open. |
| Leaks from Faucet Base | Loose mounting nuts or worn O-rings. | Tighten mounting nuts. Inspect and replace O-rings if necessary. |
| Leaks from Handles | Loose packing nut or worn cartridge. | Tighten the packing nut. If leaking persists, replace the cartridge. |
| Water Temperature Issues | Incorrect handle adjustment or issues with water heater. | Ensure both hot and cold supply lines are connected correctly. Check water heater settings. |
Warranty & Support
AVSIILE products are manufactured to high-quality standards. This product comes with an extended warranty. For specific warranty details, claims, or technical support, please refer to the contact information provided with your purchase documentation or visit the official AVSIILE website.
For further assistance, please contact AVSIILE customer service.