Yes, I am following Mike's forum. I don't see any difference as to whether or not tarnish has sulfur. The point is this:
When you do his process of running electrolysis between an aluminum strip and both of the silver electrodes, he says he sees the silver get visibly cleaner, and a thin film of something appears on the surface of the distilled water. I think this is a few hour process. Then when he takes off the power, the conductance of the water is still the same as the original distilled water, meaning no ions have been added. Though it would be nice to know what is happening in detail, that is still pretty strong observational evidence that some contaminants are being removed, I think. ~David
