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Originally Posted by mrmegahurtz
I have everything i need to set-up a draft system except a CO2 tank. They are quite tough to find in Truro. What size would you guys suggest for a single keg system? Also how long to let the beer sit after you fill the keg with you homwbrew? Thanks
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A 5lb cylinder is large enough to last quite a few kegs, I think a 20lb'er is good for at least 50 full sized 50L kegs
I think Brewingcentres is quite a bit cheaper to buy the bottle itself compared to Praxair or Air Liquide. Then you have to take it to one of said companies to fill it with CO2. Last time I filled my 20lb tank it was about $27 so it ends up being dirt cheap.
As for the time frame it takes for carbonation that's dependent on a few things. Carbonation is a function of temperature, surface area contact and head pressure. If you have a keg in the fridge and apply 13 PSI head pressure then just leave it sit there it'd take a solid week or more. If you shake the keg it'll carbonate a lot faster, if you leave say 4" head space in the keg, turn the CO2 pressure up to about 25PSI then shake the crap out of it you can fully carbonate it in ~ 10 mins! The colder your beer is the faster it'll carbonate.