Just catching up, Wow, great, great job with the river rock. You know what I use on the joints is a duster brush just like this: http://precisionbrush.com/wire-duster-brush
I take the blunt handle end and holding just like a pencil, go back and forth over the semi-stiff mortar till I get an even flat surface. Wait till a bit harder, then brush off with the soft wire bristle end.
Don't know if you guys ever use these. I never saw them till I moved out west, but they do a real nice job for a guy with the right touch.
Contractor Talk - Professional Construction and Remodeling Forum
A forum community dedicated to professional construction and remodeling contractors. Come join the discussion about the industry, trades, safety, projects, finishing, tools, machinery, styles, scales, reviews, accessories, classifieds, and more!