Sandblaster hose

I tried to clear the blockage. I ran a 24" screwdriver through each end but it is blocked solid in the middle.

Dang. I've usually been able to just blow the hose out with compressed air; either by plugging the Nozzle and letting it back-flow or by using a blow gun into the tube/hose. But I can imagine blasting media locking up tight enough that it may not work, as well.