My bubble counter did not come with any directions. How deep should I place
it in the tank?

I'm not getting any bubbles and there is about 6" of water in the airline.
My C02 reactor (O.J. Container) is swolen but does not seem to be producing
enough pressure to force the water out of the tube. I noticed a slight yeast
smell around the container, so I may have a leak around my tubing seal.

TIA