1. Product Overview
The Westinghouse PWSC12 12-inch Pressure Washer Surface Cleaner Attachment is designed for efficient cleaning of various flat surfaces such as concrete, brick, wood, and more. This attachment is compatible with most gas and electric pressure washers featuring a 1/4-inch quick-connect fitting and is rated for use with pressure washers up to 2500 PSI.
Key features include:
- 12-inch Cleaning Path: Provides a wide cleaning area for faster coverage of large surfaces.
- Dual Rotating Jets: Utilizes two high-pressure rotating jets to deliver consistent, streak-free cleaning.
- Splash-Free Skirt: Helps contain water spray and debris, reducing cleanup time and protecting surrounding areas.
- 1/4-inch Quick-Connect Fitting: Ensures easy and secure attachment to compatible pressure washer wands.
2. Safety Information
Always observe safety precautions when operating pressure washing equipment. Failure to follow these instructions may result in injury or property damage.
- Eye Protection: Always wear ANSI Z87.1 approved eye protection during operation.
- Footwear: Wear appropriate footwear to prevent slipping on wet surfaces.
- Avoid Direct Spray: Never direct the high-pressure spray at people, pets, or electrical components.
- Surface Compatibility: Test the surface cleaner on an inconspicuous area first to ensure compatibility and prevent damage.
- Pressure Rating: Ensure your pressure washer's PSI does not exceed the attachment's maximum rating of 2500 PSI.
3. Package Contents
Verify that all items are present in the package:
- Westinghouse PWSC12 12-inch Surface Cleaner Attachment
- Instruction Manual
4. Setup and Assembly
- Prepare Pressure Washer: Ensure your pressure washer is turned off and disconnected from any power source or water supply.
- Connect to Wand: Locate the 1/4-inch quick-connect fitting on your pressure washer wand. Pull back the collar on the quick-connect fitting.
- Attach Surface Cleaner: Insert the male end of the surface cleaner attachment into the quick-connect fitting on the wand. Release the collar to lock the attachment in place. Tug gently on the surface cleaner to ensure it is securely fastened.

5. Operating Instructions
- Connect Water Supply: Connect your garden hose to the pressure washer's water inlet and turn on the water supply.
- Start Pressure Washer: Follow your pressure washer's instructions to start the unit.
- Begin Cleaning: Hold the surface cleaner firmly and position it over the area to be cleaned. Squeeze the trigger on your pressure washer wand to start the water flow.
- Cleaning Technique: Move the surface cleaner slowly and steadily across the surface in overlapping passes. This ensures even cleaning and prevents streaks. Avoid lifting the surface cleaner off the ground while the water is flowing, as this can cause uneven cleaning or damage.
- Observe Results: Adjust your speed as needed based on the level of dirt and the surface material.
- Finish Cleaning: Release the trigger to stop the water flow. Turn off your pressure washer and disconnect the water supply.



6. Maintenance
- Cleaning After Use: After each use, rinse the surface cleaner thoroughly with clean water to remove any dirt or debris.
- Check Nozzles: Periodically inspect the rotating jets on the underside of the surface cleaner for clogs. If clogged, use a small wire or nozzle cleaning tool (often included with pressure washers) to clear the obstruction.
- Storage: Store the surface cleaner in a clean, dry place, away from direct sunlight and freezing temperatures.

7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Surface cleaner not cleaning effectively | Low pressure from pressure washer; Clogged nozzles; Moving too fast | Ensure pressure washer is operating at optimal PSI; Clean nozzles; Move the surface cleaner more slowly and make overlapping passes. |
| Streaks on cleaned surface | Uneven passes; Clogged nozzles | Ensure consistent, overlapping passes; Clean nozzles. |
| Water leaking from connections | Loose connections; Damaged O-rings | Tighten all connections; Inspect and replace any damaged O-rings. |
8. Specifications
- Model Number: PWSC12
- Product Dimensions: 12 x 12 x 3 inches
- Item Weight: 2.99 pounds
- Maximum Pressure (PSI): 2500 PSI
- Connector Type: 1/4-inch Quick-Connect
9. Warranty and Support
This Westinghouse product is backed by a 180-day limited warranty. For warranty claims, technical support, or replacement parts, please contact Westinghouse customer service. Refer to the contact information provided in your product packaging or visit the official Westinghouse website for assistance.