i have searched everywhere (well not everywhere or i would have found it). but i am looking for a carbination calculator based on days. i want to be able to say 30psi at 38 degrees for 2.6 volumes and have it tell me how many days (or hours preferably). has anyone heard of this. usually i chill my beer, turn on the co2 @ 30 psi and between 1 1/2 to 2 days i am golden, wonderfully carbed beer. thanks for the help