Using your DeWalt surface cleaner is easy. First, connect it to your pressure washer using the 1/4-inch quick connect spray wand connection. Make sure your pressure washer is within the 3000 PSI and 1.7 GPM rating. Move the cleaner slowly over the surface you want to clean. The high-pressure rotating jets will do the work for you. When you're done, disconnect the cleaner from the pressure washer. For maintenance, after each use, rinse the cleaner thoroughly to remove any dirt or debris. Store it in a dry place. Also, check the jets regularly to make sure they're not clogged. Remember, don't use this cleaner on surfaces that can't handle high-pressure water, and always wear appropriate safety gear like goggles and gloves.