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  • gas issue

    Ok, this is probably a simple fix, and an elementary problem for most of you, but I am still pretty simple about balancing a draft system.

    I run my root beer through a Corny keg. I run 20 feet of line, pressure set at 11psi (strait CO2, no pumps, no Nitrogen). It pours like a gem for awhile, then gradully gets foamier as the keg empties. Probably has something to do with the head space, I can't figure this out. What's going on here? Need a science lesson.

  • #2
    Co2

    Whats the temp?

    Comment


    • #3
      What size is the line?
      Scott Isham
      Harper's Brewpub

      Comment


      • #4
        Howdy,
        You probably need to change some hose to a smaller I.D. Maybe set up a choker a few feet before the faucet. I suggest you visit www.micromatic.com and check out their "beer questions" and "online Dispense Institute". Bunch of good info there.

        Luck to ya'
        Dave
        Glacier Brewing Company
        406-883-2595
        info@glacierbrewing.com

        "who said what now?"

        Comment


        • #5
          Get back to us with what size beer line you are using and the temperature of the rootbeer. Are the lines cooled the entire way? All of these can have a major impact on foaming issues.

          Ed

          Blue Line Draft Systems
          Blue Line Draft Systems, LLC
          603.369.3483
          www.bluelinedraft.com

          Comment


          • #6
            absorption

            how long is the keg being served? for example, if you are using straight CO2 and the keg is sitting 1/4 full for a few days, the root beer will undoubtedly absorb a portion of CO2 from the significant head pressure...thus changing the carbonation level of your soda...
            i've seen this happen at bars and brewpubs when kegs sit for a spell...

            Comment


            • #7
              EUREKA! I think that could be it, Grassroots. It shares an air-cooled tube with it's neighboring taps that seem to pour fine out of sankeys, and has hose of the same diameter. The only difference is, we only sell 2 or 3, if that, root beers per day during the week, and the neighboring beers flows like crazy all the time.
              So, how do I remedy this problem?

              Comment


              • #8
                It is still all about properly balancing the line, you did not provide enough info to respond - Does not matter if you have not sold any for a month, it should not be absorbed if proper equilibrium is maintained

                11psi seems awful low for soda, isn't most soda about 3 vol/vol co2?
                How did you originally carbonate?

                Attempting to dispense less than equilibrium pressure is probably the greatest cause of foaming and spitting
                Last edited by bbrodka; 05-07-2007, 06:34 PM.

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                • #9
                  If I was only selling 2-3 root beers a day...

                  Originally posted by davidmeyers
                  EUREKA! I think that could be it, Grassroots. It shares an air-cooled tube with it's neighboring taps that seem to pour fine out of sankeys, and has hose of the same diameter. The only difference is, we only sell 2 or 3, if that, root beers per day during the week, and the neighboring beers flows like crazy all the time.
                  So, how do I remedy this problem?
                  Not to make light of your situation.

                  Kind of off the real topic: If I was only selling 2-3 root beers a day I'd drop the soda and replace with a new beer.
                  Cheers & I'm out!
                  David R. Pierce
                  NABC & Bank Street Brewhouse
                  POB 343
                  New Albany, IN 47151

                  Comment


                  • #10
                    Turn up the pressure.

                    Comment


                    • #11
                      Without the serving temp and line size, it's hard to give a good answer, but I would turn up the pressure as well.
                      Scott Isham
                      Harper's Brewpub

                      Comment


                      • #12
                        Pushing carbonated liquid with too low of pressure can cause the CO2 to back out of the solution and cause foaming. Sodas are typically carbonated at a higher level than typical beers so you could be having a problem with that. If turning the pressure up causes the flow rate to jump too high than you would need to put a 3/16" choker on the end of that to reach the desired rate.
                        Blue Line Draft Systems, LLC
                        603.369.3483
                        www.bluelinedraft.com

                        Comment

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