You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser.
-
R
you cacn use yeast and sugar and water shake it up and you got co2 in the bottle just put a hole in the top and you are all set.
-
R
the yeast and sugar is better i have that set up now. most people use it for fish tanks but it works.