Archive of the former Yahoo!Groups mailing list: Homebrew PCBs

What is the best method to etch with a bubble tank. I have a 4 liter tank with a bubbler glued in the middle. Where do you place your board to be etched? I have tried in the path of the bubbles (vertical), caused under etching, and placed the board on the side of the tank(vertical), takes longer and good results so far. Should I place my bubble stick on one side and board on the other? Should the board be held vertical in the the bubbles or vertical on the side or perpendicular to the bubble flow?

Brian.