I’m trying to get some stuff media blasted to get ready for PCing. I’m using Alum Oxide in what’s probably a cheapo gun and the rubber hose leading to the gun keeps getting clogged up. I tried a different hose of the same diameter, shooping glass beads at it. Neither seemed to work. I have a 60 gal 5 hp compresssor that seems healthy. I’ve seen no evidence of excessive moisture. Its all dry in there. Do I need a new gun?