Several years ago; I tried a Hornady wet sonic cleaner, along with a bottle of their cleaning solution. I caught it on sale and thought I would give it a try. The sonic cleaner worked reasonable well but was nothing to write home about. I was limited with the amount of brass it would clean at a given time. After the cleaning was completed I began to notice that the brass would tarnish and would have to be run through my tumbler. Finally decided it wasn't worth the trouble and traded it a set of dies. When I clean brass now I use a tumbler with a dab of Lyman's brass polish. For media I've been using Zilla brand ground walnut hulls. Before I tried the sonic cleaner; I bought the walnut hulls (10 quart bag) for about $5.00 and still have plenty left. As long as the walnut hulls are kept in a climate controlled area they will last forever. Brass comes out bright and shiny, ready to be primed and loaded.