The answer to 'best way to clean pressure washer' is to regularly maintain and clean your pressure washer to keep it running efficiently. Start by unplugging the unit and detaching the high-pressure hose, wand, and nozzle. Use a soft cloth or brush to wipe down the exterior, removing any dirt or debris. Next, remove the pump filter and clean it with warm, soapy water. Inspect the pump oil level and change it if necessary, following the manufacturer's instructions.
To clean the interior, run a pressure washer cleaning solution through the machine. This will help remove any built-up grime or residue. Be sure to rinse the system thoroughly with clean water afterwards. Finally, lubricate any moving parts, such as the pump, to keep the pressure washer in top working condition.