Karcher pressure washer provide the proper answer for each cleaning task…Jet master engineering, the highest quality requirements and decades of experience in the development of innovative high-pressure cleaners make this possible. A Pressure Washer is essentially a powerful electric motor driving a group of pistons that force water through a little nozzle, therefore making a pressurized jet of water. This provides the cleaning power behind the Karcher Pressure Washer. So – anyone use other detergents (for cleaning cars and decking) that aren’t Karcher over-priced branded ones without the world imploding and if so, what would you recommend? Unless you use something that’s too thick and it damages the pump you will be fine. Makes no difference whatsoever. For more details contact us today.