Kegerator question

To use the v/v you need the exact temperature (not your 'target temp') of the second pour using a calibrated thermometer. You then go to a force carbonation chart (do a search for it, dozens will show up in your results) which will tell you the pressure. If you are around 38, and the v/v is 2.58 you will be looking for a pressure around 12.

 

Agree Doug is right at 12lb. If you have a problem with beer coming out too fast at 12lb don't turn down. Go get longer beer lines to help slow the flow down
(adding restriction)

 

Correct.... 34 kinda cold for an ale though .

 

There will be no considerable difference in how long it will last between 34 and 38F

 

Depends on the style. Lagers will last longer, big IPAs will fade quickly, higher ABV will last longer. 60-90 days max. 15.5 gallons is a lot of beer, I get bored long before that would be gone.

 

BTW The time starts when it was kegged, not when you get it. Check your dates before you accept them.

 

Google up a chart or calculator. There are hundreds on the web. For any given Volumes of CO2 (your keg needs/is 2.58) and temperature (whatever temp you prefer), there is a specific PSI setting that will maintain the required CO2 volumes. Once you know that pressure, you can figure out how long a beer line you need to balance against that pressure and give a good pour. Here's a downloadable draft line balancing spreadsheet...

https://drive.google.com/folderview...jMC00YmM5LTgzN2UtYmNhYzk0ZTg0YWNm&usp=sharing

Edit: I see there were some more posts I didn't see before, so this was kind of redundant. My advice still stands though.