So, one of my pipes has gotten stubbornly clogged and wonder if there is something I haven't thought of I could try. Have tried all my usual tricks-dribbling iso alcohol into the draft hole for a few minutes and then poking at the draft hole with a straightened paperclip, then pipe cleaner, and back to the paperclip. Also going at it through the stem side. Nothing. Then followed it up with the same maneuvers with very hot water. That usually works for me, but nothing worked. The clog is in the bowl and not the stem. In the past, have even tried a drill bit which hasn't worked well. Thanks.