Found this good old bladder tank and started building a blast pot out of it. The most important part of these is a proper media mixer valve. I found this Clemco flat sand valve design on the internet that has been reliable for decades, and copied it. The bearing end of an old axle housing and some 3/16 plate was used to make it. The slide plate is the bottom, it drops the sand into a tee where it mixes with the blast hose air. I sprayed a couple good coats of Slip Plate on the inside of the valve.








Last edited:



















