use a foam cannon or pressure washer with your car wash soap. Some soaps are specifically designed for foam cannon or pressure washer use and are designed to deliver a thick foam that clings to ...

If you use a self-serve car wash pressure washer ... When used with a high pressure pressure washer, you can shoot out soap foam hard enough to make a difference, but not hard enough to damage ...

Make sure you get a suitable car wash soap to go along with the pressure washer. Most have soap dispensers built in or attachments that fit on the wand. To take it to the next level, also consider ...