I've built a home CO2 carbonation system but I have a question about carbon dioxide flow (see pictures below).
Using a tire valve and a tire chuck, I can easily fill the soda bottle empty space with 50 psi of carbon dioxide, but that only gets the water slightly bubbly.
The build-it-yourself tutorials on the web say the carbon dioxide must be FLOWING and they say they remove the inside part of the automotive tire valve.
I have tried both ways and have two subsequent questions:
If I keep the tire valve stem (i.e., the white soda top in the photo): Q: Why doesn't the cold water get more bubbly (like soda) at 50psi?
If I remove the tire valve stem (i.e., the red soda top in the photo): Q: How do I get the tire chuck to work since it won't flow w/o the stem? Q: Even if I attach the hollow tire valve directly to the CO2 hose, how can more than the headspace of the bottle FLOW into the bottle?
I don't get how I can get the CO2 to "flow"; seems to me it would just be static and fill the headspace.
What am I doing wrong? See pictures here: