Alternatively, if you already have a pressure washer, take a look at the Kärcher surface cleaner, it can be perfectly adjusted and then only has a gentle (comparatively) rotating jet.
Alternatively, if you already have a high-pressure cleaner, take a look at the Kärcher surface cleaner, which can be adjusted perfectly and then only has a gentle (comparatively) rotating jet.
And with that, would you also not damage the surface coating?