Originally Posted by OneMoreTime
I use 80 grit media with no issue..perhaps guys need to use a finer media...
I have been using the black blasting Medea form Menards and started having a devel of a time getting the valve adjusted right. I was using play sand which was $2.50 per bag which worked pretty well. I might try mixing them a little next time to see if I can get the valve to work a little better.