i don't know if the problem is the balloon. It won't stay on at all. Maybe though? I'll happily test out that theory in about a couple of hours......
This is the underside of the solid valve.
What piece is missing from my volcano?? The chamber won't stay on the base. I have to hold it there the whole time it fills up. Bought used in this condition, otherwise works great.
I bought this volcano used. It works great for making vapor!! But... i have to tape the chamber to the base, or hold it there while it fills up. I know that's not how it is supposed to work. The person I bought it from mentioned what piece was broken, but I forgot... and it has been several...