Hi everyone. My question is about pug mills. My current and only pug mill a Shimpo NVA 04S and it was my biggest investment to date at the time of the purchase. Thankfully, I got 3-4 good years out of it but then I realized that it had corroded on the inside, only in only one area, near a "seam" but like Swiss cheese, it was not just superficial rust. But it was so bad that I started getting bits of metal (the machine was disintegrating!) in my porcelain. Needless to say I had to throw away a lo