Biollante,
I apologize if what I said came across in some way I did not mean. My confusion was from Left C's last 3 sentences in his post. At the time I didn't understand what he meant (with the multiple tubes), nor how exactly the second bottle played any role of importance. My first handful of websites showing DIY Co2 showed one bottle, one hose, done. Then I came across more places that showed the secondary bottle in some fashion to do this or that. My first assumption was the single bottle configuration was an "older" method, and the two bottle design was an upgrade to, perhaps, correct issues on the former's flaws. This is why I asked the question of if yeast being sucked into the tank was a real concern. I still don't quite understand how that can happen with the hose inches above the water, unless you do something like put the hose directly into a water pump and it has enough power to cave the plastic bottle (saw that one on the Krib). My second post on the subject was just to clarify my question.
I'm not sure if the last sentence was directed at me or a generalized statement, but I assure you I wasn't looking for anyone to agree with me on anything. Well, I guess we can agree I don't know what I'm doing. I do understand there's more than one way to do these things, I was only looking for the reasoning behind it.
