Been replacing the solution every day, so far whittled it down by a few mm but it's still stuck. I give it a few more days, the reaction's pretty viciuos by the look of the smoke that spews out the top, plus the used caustic is full of black residue from the burnt up alu.
Been replacing the solution every day, so far whittled it down by a few mm but it's still stuck. I give it a few more days, the reaction's pretty viciuos by the look of the smoke that spews out the top, plus the used caustic is full of black residue from the burnt up alu.