Aquarium silicone would be ideal if you could locate the leak and patch it up from outside. You certainly wont be pouring it into anything tho as its pretty stiff out of the tube. It is silicone after all. Cant think of anything like you're asking about op sorry.
True, I was just thinking maybe you could blob some down and use a stick or something to move it around. Worth a shot, or even like layer the bottom outside?
Oh you are absolutely correct. I definitely second the aquarium silicone ive used it several times to repair glass. Hopefully he can make it work. Hate to see a good bong go unused![]()
You may be able to get some soapy water on the outside and blow thru the bong (plugging the slide hole of course). Maybe find where its leaking at. Works on tires all the time.
One last thought.
Could I just find a pottery place and have it glazed inside and re-fired?
Ill wait to hear from you before I do anything.