Hello, I am new to brewing and kegging so I am asking you vets to help me compile a list of what I will need on the gas side of things. First let me start off by telling you what I already have: Fridge with 3 taps, 3 cornelius kegs, and of course beer. Now I think I will need a 5 lb co2 tank with a 3 way switch so I can force carb my beer. After that, can I use a 2.5 lb tank in the fridge with the 3 kegs? Not to sure how to do that, so any help will be much appreciated. Thanks!