ABCarve
Masterpiece
I've seen a number of people using a small pressure sprayer for cleaning bark. Seemed to work quite well. Does anyone know what they call this device and where do you get one?
That is very similar. The one I saw had it's own little water container ......very similar to a paint gun. I wonder how a Wagner power painter may work.That gun looks like the one used by yenling83. http://www.yenlingbonsai.com/2015/03/23/aichi-en-visiting-apprentice-trip-report-part-2/
I've seen this used on the bark of some extremely pricey azaleas and works wonders. You do have to watch how close you are and adjust the pressure.you can find them on ebay look for High Pressure Textile Cleaning Water Gun. I don't use on the bark but on the deadwood. It's high pressure water so probably could damage bark if held in one place too long. Works wonders cleaning deadwood though.
I have seen a photo of Bill Valavanis using something like this to clean bark.