So, if you don’t know by now,  I am doing summer chemistry research at my college over the summer. Both my bowl piece and my bubbler, which are both glass, have gotten amazingly filled with resin. I tried cleaning it out with water, and that helped, but they were still pretty gross. I know you can use alcohol to clean them, but in my lab, to clean things we always use acetone, so I decided to bring my pipe into lab last night while no one was there and I cleaned them just using acetone. I worked perfectly! Plus, it was free and close by. What substances have you used to clean your piece with?