The answer to 'pressure washer dirty' is that a dirty pressure washer is a common problem that can be caused by a variety of factors, including clogged nozzles, build-up of dirt and debris, and improper maintenance. Symptoms may include reduced water pressure, uneven spray patterns, and difficulty starting the machine.
To troubleshoot and fix a dirty pressure washer, you can try cleaning the nozzle, flushing the system with clean water, and checking for any blockages in the hoses or other components. If the problem persists or you're not comfortable performing the repairs yourself, it's best to call a professional cleaning technician who can properly diagnose and fix the issue.