Introduction
This manual provides essential instructions for the safe and effective use of your Dapper Supply 18-inch Pressure Washer Surface Cleaner. Designed for cleaning large flat surfaces such as driveways, patios, sidewalks, porches, and decks, this unit features a durable stainless steel construction, dual high-pressure rotating nozzles, and a splash-free skirt. Please read this manual thoroughly before operation.
Safety Information
Always wear appropriate personal protective equipment, including eye protection, during operation. Ensure all connections are secure to prevent leaks. Do not operate the surface cleaner without a pressure washer connected and water flowing. Keep children and pets away from the operating area. Refer to your pressure washer's manual for additional safety guidelines.
Package Contents
- 18-inch Surface Cleaner Unit
- Handle Assembly
- Pressure Washer Gun
- 3/8" QC Inlet
- Two Hose Adapters
- Teflon Tape
Setup and Assembly
Follow these steps to assemble your Dapper Supply 18-inch Pressure Washer Surface Cleaner:
- Attach the Handle to the Base: Secure the handle assembly to the surface cleaner base using the provided pins. Ensure the pins are fully inserted and locked.
- Connect the High-Pressure Hose: Connect the high-pressure hose from the surface cleaner base to the handle assembly. Use Teflon tape on threaded connections to ensure a leak-free seal.
- Attach the Pressure Washer Gun: Connect your pressure washer gun to the handle assembly. The unit includes a 3/8" QC inlet and two hose adapters for compatibility.
- Secure the Trigger: The pressure washer gun features a trigger lock for continuous operation. Engage the lock to prevent accidental trigger pulls or to maintain pressure without constant squeezing.

Image: Securely attach the handle to the base of the surface cleaner using the provided locking pins.

Image: Detail of the high-pressure hose connection point on the surface cleaner base.

Image: The pressure washer gun connected to the handle, showing the 3/8" QC inlet and adapters.

Image: Close-up of the pressure washer gun showing the trigger and safety locking mechanism.
Setup Video Guide:
Video: Step-by-step installation guide for the Dapper Pressure Washer Surface Cleaner.
Operating Instructions
To achieve optimal cleaning results and ensure safe operation, follow these guidelines:
- Connect to Pressure Washer: Ensure your surface cleaner is properly connected to a pressure washer with a minimum of 2500 PSI for optimal performance. The maximum allowable pressure is 4350 PSI.
- Start Pressure Washer: Turn on your pressure washer according to its manufacturer's instructions.
- Begin Cleaning: Squeeze the trigger on the pressure washer gun to start the water flow. Walk slowly behind the unit, guiding it over the surface to be cleaned. The dual high-pressure rotating nozzles will clean a wide path.
- Maintain Consistent Speed: Move at a consistent, slow pace to allow the rotating nozzles to thoroughly clean the surface without streaking.
- Splash-Free Operation: The circular brush and splash-free skirt are designed to contain water spray and debris, ensuring a cleaner and safer workspace.
- Maneuverability: The four 360° caster wheels allow for smooth gliding and easy maneuverability over various flat surfaces.

Image: The Dapper Supply surface cleaner actively cleaning a large paved area, demonstrating its wide coverage.

Image: The underside of the surface cleaner showing the dual rotating nozzles and the flexible bristle skirt.

Image: A detailed view of one of the 360-degree rotating caster wheels, highlighting smooth movement.
Operation Video Guide:
Video: Demonstration of the Dapper Pressure Washer Surface Cleaner in action, showing its cleaning effectiveness.
Maintenance
Regular maintenance ensures the longevity and optimal performance of your surface cleaner:
- After Each Use: Flush the unit with clean water to remove any debris or chemical residues.
- Inspect Nozzles: Periodically check the rotating nozzles for clogs or damage. Clean any blockages using a nozzle cleaning tool (not included) or a thin wire.
- Check Connections: Ensure all hose connections remain tight and free of leaks. Replace Teflon tape as needed.
- Lubrication: The internal bearings are designed for durability. If you notice any resistance in rotation, consult a qualified technician.
- Storage: Store the surface cleaner in a dry, protected area to prevent corrosion and damage.
Troubleshooting
If you encounter issues with your surface cleaner, refer to the following common solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No water flow or low pressure |
|
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| Uneven cleaning or streaking |
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| Water leaking from connections |
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If problems persist, contact Dapper Supply customer support.
Specifications
| Feature | Detail |
|---|---|
| Brand | Dapper Supply |
| Model Number | DP-SPW1115 |
| Cleaning Disc Size | 18 inches |
| Max PSI | 4350 PSI |
| Recommended Min PSI | 2500 PSI |
| Connector Type | 3/8" Quick Connect (QC) |
| Material | Stainless Steel |
| Wheels | Four 360° Caster Wheels |
| UPC | 850064526219 |
Warranty and Support
Your Dapper Supply 18-inch Pressure Washer Surface Cleaner is backed by a 1-Year Warranty, ensuring reliable performance and customer satisfaction. For any inquiries or support needs, please contact Dapper Supply customer service. Additional support resources may include:
- U.S.-Based Expert Support
- Nationwide Technician Network
- Replacement Parts Availability



Images: Visual representations of available support services.

