Nevermind, I found what I need to find. It is a little rubber o-ring.
nicktheawesome Reviewed by nicktheawesome on . anybody who owns a volcano Hey, I have a volcano, and I might have lost a part, but I'm not sure. Can somebody take a picture or describe really well what the bottom of their filling chamber looks like? My filling chamber isn't sitting level on the top of the volcano, and I want to see if there is a missing part, or what happened. I just went to my friends house, and the last place I used it was there, so I can't easily look around for anything odd... Mine is all silver, except for the black edge and screen. Rating: 5