I have a RooR 'water pipe' (beaker style) that I use in conjunction with my Vapor Heat Wand. The beaker portion of the 'water pipe' is covered with the yellow residue/ oil. I'm trying to think of the best way to collect all of this residue. Normally when I clean my pieces, I always uses a ISO + NACL combination as its cheap, easy, and very effective. Obviously I don't want to use any NACL as to not contaminate the ISO/ Oil mixture. Should I just soak the beaker portion with ISO over night? Will the oil be loose enough by the next day to just poor off without scraping (can't exactly get to the beaker part of a water-pipe to scrape). Recommendations?