Chiguy

We have a few gallons of slip that has hardened in the bottom of the Slip-o-Matic tub. The block measures about 8 inches thick, is about 18 x 18 inches, and has hardened up like very thick fudge (not completely dry). We've been trying to cut out or shave off pieces, but are making little progress. Any experience with how to dissolve or cut this up so we can get it out of the machine would be very helpful. We've moving in a week and have to get the equipment out of our basement.