How many PSI do I need to clean concrete?

How many PSI do I need to clean concrete?

For most concrete cleaning — driveways, garage floors, patios, walkways — 2,000 to 3,000 PSI is the effective and appropriate range, with 2,500 PSI widely considered the sweet spot for balancing cleaning power against surface safety. Lighter surface dirt and general dust can be handled at the lower end of that range, while embedded oil stains, algae, or years of accumulated grime justify pushing toward 3,000 PSI paired with a concrete-specific degreaser. Going meaningfully above 3,000 PSI on residential concrete rarely adds proportional cleaning benefit and increases the risk of etching or pitting the surface, especially on older or already-weakened concrete. Using a 15° or 25° nozzle rather than a narrow pinpoint tip, and keeping the wand moving steadily, matters just as much as the PSI number itself.