God that sounds awful... :rofl:Poor fella had "Listerine" water for years!
I tried some iso just today, actually. The guinea pig was a weird old Dr. Grabow I'd picked up a while back. I did a cursory cleaning on it, figured that was good enough, but there was a ghost that would NOT smoke out of that pipe. So today, I figured "Hey! I should give that old boy a thorough cleaning. We'll see if that ghost can live through THAT!"
So with a focus on stem and shank, I went through about 35 regular and a dozen or so bristle cleaners dipped in isopropanol. To clarify, that was how many I went through before they started to not come out black anymore. The ghost is faint, but still present. It may just smoke out now, but it also may be due for a trip to the ozone chamber.
Isopropanol apparently DOES do some funny stuff to vulcanite though. Fortunately, EVOO is not something I'm ever lacking, and it brought the stem back to a reasonably decent looking state. So, basically, Iso = success, just be careful around vulcanite.