WaterBlaster was a drawing executed on the back of a house in Berkeley, California with a paint waterblaster. The old, white, flaking paint was removed with a high pressured jet of water, creating the drawing on the back of the building (2nd and 3rd photos). The waterblasting was continued until all the old paint was removed (4th and 5th photos). The house was then painted with golden yellow house paint (6th photo).
slide show