I have a 60 gal. 7.5 hp compressor and a $50 siphon sand blaster. It works, but as others have said it is slow. I have done my frame (or at least sections of it), it is time consuming because the compressor is almost constantly running. I usually sandblast for 5-10 minutes, let the compressor catch up and wait another 10-15 minutes. Basically, it does the job, but it is a slow process with my setup.
