Introduction
This manual provides comprehensive instructions for the installation, operation, and maintenance of your Riobel MMSQ80C Wall-Mount Tub Spout. Please read these instructions carefully before beginning installation to ensure proper function and longevity of the product.
The Riobel MMSQ80C is a high-quality wall-mount tub spout crafted from durable brass with a polished chrome finish, designed to complement modern bathroom aesthetics.

Image: Riobel MMSQ80C Wall-Mount Tub Spout. This image displays the polished chrome finish and the sleek design of the tub spout.
Safety Information
Important: Always turn off the main water supply before attempting any plumbing installation or repair. Failure to do so can result in water damage or personal injury.
- Read all instructions thoroughly before installation.
- Wear appropriate personal protective equipment, such as safety glasses and gloves.
- If you are unsure about any part of the installation process, consult a qualified plumber.
- Ensure all local plumbing codes are met during installation.
Package Contents
Verify that all components are present before beginning installation:
- Riobel MMSQ80C Wall-Mount Tub Spout (1 unit)
- Installation hardware (e.g., mounting plate, screws, seals) - Specific hardware may vary; refer to packaging.
Setup and Installation
This tub spout is designed for wall-mount, single-hole installation with a ½" inlet male NPT connection.
Required Tools (Not Included):
- Adjustable wrench or pipe wrench
- Plumber's tape (PTFE tape)
- Screwdriver (if mounting plate requires screws)
- Measuring tape
- Level
Installation Steps:
- Prepare the Installation Area: Ensure the water supply to the tub area is completely shut off. Clear the area around the existing or planned spout location.
- Remove Old Spout (if applicable): If replacing an existing spout, carefully remove it. Clean any old sealant or debris from the wall surface.
- Apply Plumber's Tape: Wrap plumber's tape clockwise around the threads of the ½" male NPT pipe extending from the wall. Apply 3-4 layers for a secure, watertight seal.
- Attach the Spout: Carefully thread the Riobel MMSQ80C tub spout onto the taped pipe extending from the wall. Turn clockwise by hand until snug.
- Tighten the Spout: Using an adjustable wrench, gently tighten the spout until it is firmly secured and properly oriented. Avoid over-tightening, which can damage the pipe or spout. Ensure the spout is level.
- Test for Leaks: Slowly turn the main water supply back on. Check for any leaks around the connection point. If leaks are detected, turn off the water, re-tighten the connection, and re-test.

Image: Example of a wall-mount tub spout installation. This image illustrates the general appearance of the spout once installed on a wall.
Operating Instructions
The Riobel MMSQ80C Wall-Mount Tub Spout functions by directing water flow from your bath faucet's mixing valve into the tub. Operation is straightforward:
- Ensure your bath faucet's mixing valve is in the "tub spout" position (if applicable) or simply turn on the water supply to the tub.
- Water will flow from the spout into the bathtub.
Maintenance
To maintain the polished chrome finish and ensure the longevity of your Riobel tub spout, follow these cleaning guidelines:
- Regular Cleaning: Clean the spout regularly with a soft, damp cloth and mild soap.
- Avoid Harsh Cleaners: Do not use abrasive cleaners, scouring pads, ammonia-based cleaners, or any cleaners containing bleach, acids, or harsh chemicals. These can damage the chrome finish.
- Dry After Use: Wipe the spout dry after each use to prevent water spots and mineral buildup.
Troubleshooting
Most issues with a tub spout are related to installation or the water supply system. Here are some common concerns:
| Problem | Possible Cause | Solution |
|---|---|---|
| Water Leaks from Wall Connection | Improperly sealed threads; insufficient plumber's tape; loose connection. | Turn off water supply. Remove spout, reapply plumber's tape (3-4 layers), and re-tighten securely. |
| Low Water Flow from Spout | Main water supply partially closed; issue with the mixing valve or plumbing system. | Check main water supply valve. Inspect the bath mixing valve for obstructions or issues. This is typically not a spout issue. |
| Spout is Loose | Spout not tightened sufficiently during installation. | Turn off water supply. Gently tighten the spout onto the pipe until secure. |
If problems persist after attempting these solutions, contact a qualified plumber or Riobel customer support.
Specifications
| Feature | Detail |
|---|---|
| Brand | Riobel |
| Model Name | MMSQ80C |
| Mounting Type | Wall Mount |
| Finish Type | Polished |
| Material | Brass |
| Color | Chrome |
| Included Components | Wall-mount tub spout |
| Installation Type | Single Hole |
| Inlet Connection | ½" inlet male NPT |
| Item Weight | 3.1 Pounds |
| Product Dimensions (Approx.) | 1 x 1 x 1 inches (Note: These dimensions may refer to packaging or internal components, not the full spout size.) |
Warranty and Support
Warranty: The Riobel MMSQ80C Wall-Mount Tub Spout comes with a LIMITED LIFETIME WARRANTY. Please refer to the official Riobel warranty documentation for full terms and conditions, including coverage details and limitations.
Customer Support: For technical assistance, replacement parts, or warranty claims, please contact Riobel customer service. Contact information can typically be found on the manufacturer's official website or product packaging.
Please retain your proof of purchase for warranty purposes.





