A pressure washer isn't like a regular water hose that you use, for example, on the dog, and so the PSI (pounds per square inch) can truly be the difference between cleaning something and damaging it.
Some people are perfectly happy washing their car by hand with a bucket of mild soapy water and soft wash mitt; some only have the time to run it through a drive-thru wash after a fill-up, and others ...
Fall is prime pressure-washing season. Between rinsing mossy patios, blasting leaves off decks, cleaning siding before winter rains, and giving the car one last shine before the weather turns, a good ...