The answer to 'why is my pressure washer water damage' is that there are a few common causes, including using the wrong nozzle, holding the wand too close to the surface, or operating the washer at too high of a pressure. This can lead to symptoms like surface damage, chipping, or discoloration. To fix the issue, you'll need to adjust your technique or have the pressure washer serviced by a professional.
Pressure washers can be powerful tools, but they need to be used properly to avoid damage. If you're not sure how to operate your pressure washer safely, it's best to consult the manufacturer's instructions or call in a professional cleaning technician to assess the issue and make any necessary repairs.