force carbonation questions

[neilph]

I have a question about force carbonating beer. After doing some more reading i found I have more questions. What I've been doing is this:
Transferred from secondary into keg
I add some c o 2 to displace oxygen, usually about 10 psi.
I keep it cool usually in the thirties forties
For the style of beer I want 2 and a half volumes of c o 2 which in the homebrewers companion says 15 psi.
I add the gas and I mix it for a couple of minutes.
I put it in my lager box and keep it cool.
My questions are do I need to add more gas to get a good seal?
Do I need to leave the gas hooked up or can I apply more everyday or so? Approximately how long will it take?
Thank you guys you're the best?

 

[pompeiisneaks]

This question gets asked all the time, remember to search the forums. One of the MANY threads on this I found has a great answer by Johnsma22 in the first reply.

https://www.homebrewtalk.com/f13/force-carbonation-11367/

The "google" based search in the search tool on top of all pages rocks, use it to safe yourself some time!

 

[neilph]

Thanks!