I've got a lovely piece I got about a year ago- it's wooden, and it's got a hinge piece on the top of the bowl, which is great to pack, cover, and take on the go. It's been used quite frequently, and it's now gotten much harder to hit because it's so clogged. Unfortunately, the way the pipe is designed, I am unable to manually scrape anything but the bowl, which hasn't yielded any results yet.
I was thinking isopropyl and salt, but since my bowl has colored wood, would that damage the coloring? Could I simply put the mixture into the bowl portion withough resorting to soaking the entire piece?
Here's a diagram of my piece:
