Doug,
Let me say in more succinct terms that I believe RRL products to be the best available for vinyl cleaning because of the testaments from members like you and Albert. For sure, if RRL has a distiller that does what they say, they are using water that is as pure as it gets. Also, I don't want anyone to feel like I'm being overly critical of any manufacturer of cleaning products. Most work very well and a couple are outstanding. This topic is like rice paper record sleeves. They are labeled as such because the sellers know that if they call them polyethylene they would sell fewer. I've always admired anyone that goes to the furthest extremes in a effort do their best as RRL apparently does. I do take offense at opinions based on nothing but ignorance. And, for the record, every drop of water on this planet has been cyrogenically treated long, long ago, and far, far away. Marco, maybe you can make some IC's out of this resource. More outrageous things have been tried.