I thought about making it a smaller chamber, but I figured a larger chamber would cool the spice down sufficiently.

I never used a bubbler. Mostly because I am afraid of loosing too much spice with all the extra distance the spice must travel. As it is; my whip, and sides of the chamber steal enough of my spice as it is.

The bowl is stainless steel. It used to be a small funnel but I cut the bottom off and found a stainless steel bolt that would both fit into the end of the iron and form smoothly with the bottom of the bowl without any leaks. I may tig weld the bolt right to the bowl at some point (since I am a welder).

The bowl was a rare find! I was looking everywhere for something that would work.

btw if any of you are familiar with a good easy tek for THH, could I get a link? I am having a hard time finding some clear and easy to follow instructions.

Thanks!