[Tim]

Dave, it was a time-consuming task. We found that the check valves and tubing were clogged. We went to the pet supply store and bought some fish tank tubing (cheap, and the right size) and also found the little check valves in the fish tank supply section. After repeated reference to the diagram on the paperwork (if you don’t have the schematic, I can probably get it to you) for the Bubble Wall Option, we ended up taking out a drawer and finally found the tank under and behind the bed… behind as in unscrew and disassemble the pretty compartment walls that Marathon made. Not hard, but like I said, time-consuming. Then we found the filter for the pump for the tank filling apparatus was clogged so had to fix that as well. But, we did finally achieve bubbles! Good luck!

Kirby