Cleaning concrete with a pressure washer is an effective way to remove dirt, grime, and stains, restoring its appearance. The process involves careful application of the water stream and, sometimes, detergent.
The Process: Step-by-Step
Follow these steps when using a pressure washer on concrete surfaces like driveways or patios:
- Initiate Spraying: Begin by pointing the spray wand at the driveway surface and pressing the trigger. (Based on Reference 1) Start spraying at a safe distance from the surface and move closer as needed to find the optimal pressure for the dirt without damaging the concrete.
- Methodical Cleaning: Sweep the nozzle steadily back and forth across the concrete, overlapping each stroke by several inches. (Based on Reference 2) This technique is crucial for achieving a uniform clean and preventing noticeable streaks or lines. Maintain a consistent speed and distance from the surface.
- Detergent Application (If Needed): If using a detergent for tougher stains, apply it using the appropriate pressure washer setting or nozzle first. Once you've applied detergent to the entire surface, let it stand for 15 minutes or so. (Based on Reference 3) This allows the cleaning solution time to break down dirt and grime before rinsing. Always follow the detergent manufacturer's instructions for application and dwell time.
By using the pressure washer effectively and following these steps, you can achieve a clean concrete surface.