I made a mistake last year. I used a high pressure machine (used for deck and sidewalk cleaning) on my fingers. I used it at too close a range and did damage to some of the fingers. The very high pressure spraying machines at very close range can take fresh paint off wood and can therefore put holes in your fingers.

I had success the year before using a regular hose with sharp spray nozzle in cleaning the fingers and I just figured the super higher spray would be better. So just be careful out there with the wand and how you use it.