(video 9) Flip Cup Hydrogen Generator – New Design (HHO, Brown's Gas, Hydroxy)

I came up with the idea of stacking neutral cups without any spacing in between, so I could save space. I was surprised to see that my output is better than before with 2 less cups in the cell. I've tested this idea with my 2.5oz cup hho fuel cell and the 1.5oz cup hho fuel cell. Both cells are now much more compact and still have excellent output.