1. Introduction and Overview
This manual provides instructions for the installation, operation, and maintenance of the Fluidmaster 400A133 Premium Universal Toilet Fill Valve. This fill valve is designed to replace existing toilet fill valves, offering adjustable height and efficient water refilling.
The Fluidmaster 400A133 is compatible with most toilet models, including those from Kohler, Toto, and American Standard. It features an adjustable height range of 9 to 14 inches and includes a roller-clamp for controlling the refill rate to optimize water usage.
Image 1: Three Fluidmaster 400A133 Premium Universal Toilet Fill Valves. These valves are designed for efficient and quiet toilet tank refilling.
2. Safety Information
Before beginning installation, please read all instructions carefully. Observe the following safety precautions:
- Always turn off the water supply to the toilet before starting any work.
- Flush the toilet to empty the tank before removing any components.
- Wear appropriate personal protective equipment, such as safety glasses, to prevent injury.
- Ensure all connections are secure to prevent leaks.
- Do not overtighten plastic nuts, as this can cause damage.
3. Package Contents
Verify that all components are present in the package:
- Fluidmaster 400A133 Fill Valve
- Refill Tube
- Refill Clip
- Shank Washer
- Locknut
Image 2: Exploded view of the Fluidmaster 400A133 fill valve showing the main body, refill tube, refill clip, and washers.
4. Setup and Installation
Follow these steps to install the Fluidmaster 400A133 fill valve:
- Turn Off Water Supply: Locate the water supply valve at the base of the toilet and turn it clockwise until the water flow stops.
- Empty Toilet Tank: Flush the toilet to drain most of the water from the tank. Use a sponge or towel to remove any remaining water.
- Disconnect Water Supply Line: Unscrew the water supply line from the bottom of the old fill valve. Have a small bucket ready to catch any residual water.
- Remove Old Fill Valve: Loosen the locknut on the underside of the toilet tank that secures the old fill valve. Remove the old fill valve from the tank.
- Install New Fill Valve:
- Place the new Fluidmaster 400A133 fill valve into the hole at the bottom of the toilet tank.
- Ensure the shank washer is properly seated on the threaded shaft of the fill valve, inside the tank.
- From the underside of the tank, hand-tighten the locknut onto the threaded shaft until snug. Do not overtighten.
- Adjust Fill Valve Height:
- The fill valve's height is adjustable. To adjust, hold the top of the valve and twist the lower shaft counter-clockwise to unlock.
- Extend or retract the valve to set the desired height. The critical water level mark on the valve should be at least 1 inch above the top of the overflow pipe.
- Twist the lower shaft clockwise to lock the height in place.
Image 3: Close-up of the top portion of the fill valve, illustrating the height adjustment mechanism and refill tube connection point.
- Connect Refill Tube:
- Attach one end of the refill tube to the small port on the top of the fill valve.
- Insert the refill clip onto the other end of the refill tube.
- Clip the refill tube onto the top edge of the overflow pipe, ensuring the tube is directed into the pipe.
- The blue roller-clamp on the refill tube can be used to adjust the flow rate into the overflow pipe, which affects the bowl fill level.
Image 4: The refill tube with its blue roller-clamp and a separate refill clip, used to direct water into the toilet's overflow pipe.
- Reconnect Water Supply: Reattach the water supply line to the threaded shaft at the bottom of the new fill valve. Hand-tighten the connection.
- Turn On Water Supply: Slowly turn the water supply valve counter-clockwise to restore water flow to the toilet tank.
- Check for Leaks and Adjust Water Level:
- Allow the tank to fill. Check all connections for leaks.
- The water level in the tank should be approximately 1 inch below the top of the overflow pipe. If adjustment is needed, repeat step 6.
Image 5: A Fluidmaster 400A133 fill valve correctly installed inside a toilet tank, connected to the water supply and overflow pipe.
5. Operating Instructions
The Fluidmaster 400A133 fill valve operates automatically. After each flush, the valve will open to refill the toilet tank to the preset water level. The refill tube simultaneously directs a small amount of water into the toilet bowl to restore the trap seal.
The water level in the tank can be adjusted by changing the height of the fill valve as described in the installation section (Step 6). The amount of water directed to the bowl via the refill tube can be fine-tuned using the blue roller-clamp.
6. Maintenance
Regular maintenance helps ensure optimal performance and longevity of your Fluidmaster 400A133 fill valve:
- Periodic Inspection: Annually inspect the fill valve for any signs of wear, cracks, or mineral buildup.
- Cleaning: If the valve's performance degrades (e.g., slow fill), turn off the water supply and carefully remove the cap of the fill valve (refer to manufacturer's instructions for cap removal). Rinse any debris or mineral deposits under running water. Reassemble the cap securely.
- Check Refill Tube: Ensure the refill tube remains properly positioned in the overflow pipe and is not kinked or obstructed.
7. Troubleshooting
If you encounter issues with your Fluidmaster 400A133 fill valve, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Toilet runs continuously or cycles on and off. | Water level too high, fill valve not shutting off, flapper not sealing. |
|
| Toilet fills slowly. | Low water pressure, clogged fill valve, kinked refill tube. |
|
| Toilet does not fill. | Water supply off, fill valve obstructed. |
|
| Water level in bowl is too low. | Refill tube not properly positioned, roller-clamp too restrictive. |
|
8. Specifications
- Model Number: 400A133
- Brand: Fluidmaster
- Adjustable Height: 9 to 14 inches
- Inlet Connection Type: Fill
- Number of Ports: 2
- Certifications: NSF, ANSI 61, ANSI 372, Durability, Warranty
- Item Weight: Approximately 1.68 pounds (for 3-pack)
- Package Dimensions: Approximately 13.3 x 7.72 x 3.46 inches
- UPC: 039961344007
9. Warranty and Support
The Fluidmaster 400A133 Premium Universal Toilet Fill Valve comes with a 5-year warranty.
Image 6: Product packaging for Fluidmaster 400A133, indicating a 5-year warranty.
For technical assistance, warranty claims, or further information, please visit the official Fluidmaster website or contact their customer support. You can find more resources and contact details on their official brand store page: Fluidmaster Store.
