HF sandblaster

I have the HF blaster as well, had continual trouble, i finally took hose loose at bottom drill hole larger and started with a 1.5 inch steel nipple welded on,kept reducing it down to proper size for hose, eliminated ball cut off , and using a larger diameter center hose ceramic end ,i no longer have a clogging problem, but you need a compressor with CFM to keep constant pressure at 80 pounds