A small pot blaster will do the job as long as you have a air compressor with enough CFM. Otherwise, its a couple min of blasting and a bunch more min of waiting to get pressure up. I had to get a 14 CFM, 175 PSI, 80 Gal 2 cycle compressor to handle my media cabinets. BTW, do not use silica sand. Use the coal slag (fine grit: black beauty, black diamond, etc). Sold in large bags at tractor supply. Much easier on lungs and metal