Hello I have been trying for years to find a fairly easy way to clean these nasty dirty grates! Scrubing with grill brushes, wire wheels etc. Then blasting with the decent DeWalt 15 gallon compressor but No Cigar! Very frustrating! So finally I got a Quincy but the blasting cabinet with aluminum oxide was too much and took a lot of the finish off! So finally I took out the harbor freight soda blaster and the first time I used it with the old DeWalt it kept clogging. Just like many reviews of this nice blue portable soda blaster people were disappointed with the clogging. This time I was ready with the right stuff! I fired up the Quincy and turned on the Chilla! ( i.e Quincy Refrigerant Air Dryer ) This makes the compressed air stone cold and bone dry! Then with the right media setting @ 60 PSI it was snowing like Christmas!! Amazing! Cleaned the grates right up without removing the finish coating! The Air Chief with brass wire wheel which is a little less abrasive than the shinny steel wire wheel works great on the back side grooves to get the nasty hardened black soot off too! Anyone try this?