Remember what water pressure can do. Many high tech factories use water pressure to cut thick metals

, leaving very sharp cuts for exact measurements.
At a distance a high pressure washer
might not do any damage. But if you see a mark or stain, you get a little closer to remove the dirt or mark, and it works.
You can't see it but the paint is being damaged and the wax is surely gone ...but it looks clean.
Bill, thanks for the invite and I will take you up on it in the future.
Cheers, Derek
And Anthony and other Albertans are putting their snows back on.
We've still got a ton of snow but we also have 20 C for a couple of days. WOW!!