CASAINC M6630-A-22
CASAINC 22-Inch Waterfall & Rain Shower System with Handheld Spray
Model: M6630-A-22
Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your CASAINC 22-Inch Waterfall & Rain Shower System. Please read this manual thoroughly before installation and use to ensure proper function and safety. Keep this manual for future reference.
Safety Information
- Always turn off the main water supply before beginning any installation or repair work.
- Ensure all plumbing connections are secure to prevent leaks.
- If you are unsure about any part of the installation process, consult a qualified plumber.
- Do not use abrasive cleaners or harsh chemicals on the matte black finish, as this may damage the surface.
- The pressure balance valve is designed to prevent sudden temperature changes. Do not tamper with its settings unless necessary for calibration.
Package Contents
Verify that all components are present before beginning installation. If any parts are missing or damaged, please contact customer support.

Image: Overview of the CASAINC shower system package contents, including the shower head, handheld spray, valve, hose, and mounting hardware.
- 22 Inch Overhead Shower Head
- 59 Inch Shower Hose
- Pressure Balancing Shower Valve
- Stainless Steel Hand Shower
- Mounting Hardware and Accessories
- Installation Manual
Specifications
| Brand | CASAINC |
| Model Number | M6630-A-22 |
| Color | Black |
| Finish Type | Matte Black |
| Material | Stainless Steel |
| Number of Handles | 1 |
| Mounting Type | Wall Mount |
| Head Size | 22 inches |
| Shower Hose Length | 59 inches |
| Standard Connection | American standard 1/2 inch NPT thread |
| Certifications | CUPC certified ceramic cartridge |

Image: Detailed product dimensions for the shower head, control panel, and handheld shower.
Setup and Installation
Professional installation is recommended for this shower system. Ensure you have all necessary tools and materials before starting. Refer to the included installation manual for detailed, step-by-step instructions and diagrams.
General Installation Steps:
- Prepare the Installation Area: Turn off the main water supply. Clear the wall area where the shower system will be mounted.
- Install the Pressure Balance Valve: Mount the pressure balance valve body securely within the wall, ensuring it is level and at the correct depth. Connect the hot and cold water lines to the designated inlets on the valve.
- Connect Outlets: Connect the valve outlets to the shower head arm, handheld shower hose connection, and any other desired functions.
- Install Shower Head Arm and Handheld Holder: Securely mount the shower head arm and the handheld shower holder to the wall.
- Attach Shower Head and Handheld Spray: Connect the 22-inch overhead shower head to the arm and the handheld spray to its hose and holder.
- Install Trim Plate and Handle: Install the decorative trim plate and the control handle onto the pressure balance valve.
- Test for Leaks: Turn on the main water supply and carefully check all connections for leaks.

Image: Internal view of the pressure balance valve, highlighting its components for installation reference.
Operating Instructions
Your CASAINC shower system offers three distinct spray functions: Rainfall, Waterfall, and Handheld Spray. The single handle controls both water flow and temperature, while the diverter knob selects the spray mode.

Image: Control panel showing the main handle for temperature and flow, and the diverter knob for selecting between rainfall, waterfall, and handheld spray functions.
Controlling Water Flow and Temperature:
- Turn On/Off: Lift the main handle to turn on the water flow. Push it down to turn off.
- Adjust Temperature: Rotate the main handle left for hotter water and right for colder water. The pressure balance valve will maintain a consistent temperature even with pressure fluctuations.
Selecting Spray Functions:
Use the diverter knob on the control panel to switch between the three functions:
- Rainfall Mode: Rotate the diverter knob to the rainfall icon. Water will flow from the entire surface of the 22-inch overhead shower head, simulating a gentle rain.
- Waterfall Mode: Rotate the diverter knob to the waterfall icon. Water will cascade from the wide slot on the 22-inch overhead shower head, providing a broad, invigorating flow.
- Handheld Spray Mode: Rotate the diverter knob to the handheld shower icon. Water will be directed to the handheld spray for targeted rinsing.

Image: Shower operating in Rainfall mode.

Image: Shower operating in Waterfall mode.
Maintenance
Cleaning the Finish:
- To maintain the matte black finish, clean regularly with a soft, damp cloth.
- Avoid using abrasive cleaners, harsh chemicals, or scouring pads, as these can scratch or damage the finish.
- For stubborn spots, use a mild soap solution and rinse thoroughly.
Cleaning Silicone Nozzles:
- The shower head and handheld spray feature easy-clean silicone nozzles.
- To remove mineral buildup (limescale), gently rub the silicone nozzles with your finger or a soft brush. This will dislodge any deposits and restore optimal spray performance.

Image: Close-up of the shower head nozzles, illustrating the easy-clean silicone material and air injection technology.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Low Water Pressure |
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| Water Temperature Fluctuations |
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| Leaks from Connections |
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Warranty and Support
CASAINC provides lifetime limited maintenance for its products. We are committed to ensuring your satisfaction with our shower system.
- If you receive products with missing parts or damage, please reach out to us before initiating a return. We will assist you in finding a quick solution.
- For any questions regarding consultation, logistics, installation, or missing items, please contact our customer support team.
You can typically get in touch with us by simply clicking the "Order Details" page on your purchase platform.

Image: CASAINC customer support is available to assist with product inquiries.
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