The answer to 'when to clean pressure washer' is that you should clean your pressure washer after each use. Regularly cleaning and maintaining your pressure washer is important to keep it in good working condition and extend its lifespan. After each use, you should flush the system with clean water to remove any dirt, debris, or chemical residue that may have built up during operation.
It's also a good idea to clean the pressure washer more thoroughly on a regular basis, such as monthly or quarterly depending on how often you use it. This involves disassembling the unit, cleaning all the components, and inspecting for any wear or damage. Proper cleaning and maintenance will help prevent clogs, corrosion, and other issues that can reduce the performance and lifespan of your pressure washer.