Great video by Ben Kenealey, shows us the do’s and dont’s of using a ultrasonic cleaner for cleaning glass and your manifold, as recommended by Bruce Suba. Cleaning Steps:1. Soap and hot water2. Rinse with water3. Deionized water4. 91%+ isopropyl alcohol 5. Acetone   Another perspective on this was suggested by Tim Drier, a scientific glassblower…