ORIGINAL: Altered1
How do the bubbless tanks work Crispy ? ...interesting
I used a 1/2 inch thick foam pad for mine, and it worked fine.
They work by first removing all the air from the fuel using an internal bladder. Exhaust pressure pushes against bladder cause fuel to flow. No air in the tank.... no issues with air bubble. I've used both Tettra and Jett and perfer the Tettra.