Help! DIY generator producing bubbles, but none in the tank
I recently tried using a DIY CO2 generator that I made out of airline tubing, a 1 gallon milk jug, and a yeast/baking soda/water solution. I used
1. Tablespoon yeast
2. 2 cups sugar
3. 1 pinch baking soda
However, a few days after setting up, I see a lot of bubbles rising to the surface of the jug, which I presume to be a sign that CO2 production is happening, but I see no bubbles coming out of the end of the airline tubing in the tank. I don't think there are any leaks (I don't hear any). I do see that sometimes a little yeast-sugarwater solution is expelled out of the jug and accumulates here and there in the airline tubing. What is the issue and how can I solve it?