I bought this 40# sand blaster and it went together easy enough. However, it clogs almost instantly after I start blasting. For anybody that has used one of these type blasters; Is my problem coming from using generic sand and not the expensive stuff they sell at HF? The way I start is; after the tank is pressurized, I open the hose valve and the air stream valve, then open the sand valve at the bottom. Every time, when I open the sand valve, everything gets glogged.
Any ideas would be appreciated.