about 2 years ago, i bought a new torwell sander (1.7 yard). i wanted to get the stainless one, but the dealer was out, and couldnt get me one for about 2 months. i was tired of throwing salt off the back of the truck, and just picked up a big commercial lot. anyways i got the steel one. problem is its starting to slightly rust. (expected). any advice on how to slow this process down a bit. i always wash the unit out when im finished with it, only have salt in it when using it, after i wash it out (scrubed clean) i oil the whole machine up. just sucks to pay $3600 for something and watch it deteriorate.