So, I've always been bothered by the amount of unsmoked tobacco in my estate pipe which I've put down to the bottom of the bowl being lower than the draft hole. I mixed up a batch of "pipe mud" from cigar ash and water and put a patch in the bottom and we'll see if this fixes that and any gurgling. I needed very little to fill in the hole.
Here's a how-to video and I used the tip in the comment with some pachinko balls in a mason jar to break down the cigar ash into a powder:
9 months ago
I have a mason jar I keep my cigar ash in for mudding. My trick for braking down the ash is two 1/4” steel ball bearings. I’ll cap the jar and spin the bearings around and bounce them lightly and it works fantastic. Also I can spoon put exactly how much I want with a Czec tool and keep the rest."
Here's another good reference site: http://www.stemandbriar.com/repairs/pipe-mud
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