I currently bottle or can after brewing directly out of my ssbrewtech unitank using a blichman beergun. I used a beer line calculator to make sure I am using the right length and diameter of hose between the tank and gun so I don't get foaming, and I am using my glycol chiller to chill the beer down close to freezing before bottling.
When I first start the process, everything is fine and I get good cold, carbonated beer flowing into my bottles and cans with little to no foaming. However, and the process progresses, I get more and more foam in the line until, when I'm about 3/4 of the way through the process, my can's are filling to 1/2 to 1/3 foam. I assume that I am somehow messing up the PV=T equation here, and there is some sort of, e.g. pressure drop in the unitank which is causing the beer to foam as the volume decreases. The confusing part to me is that I am monitoring the pressure gauge on the unitank through the whole process, and it's never dropping, so I can only assume the problem lies elsewhere.
Has anyone had similar issues, and if so, how did you fix it?
When I first start the process, everything is fine and I get good cold, carbonated beer flowing into my bottles and cans with little to no foaming. However, and the process progresses, I get more and more foam in the line until, when I'm about 3/4 of the way through the process, my can's are filling to 1/2 to 1/3 foam. I assume that I am somehow messing up the PV=T equation here, and there is some sort of, e.g. pressure drop in the unitank which is causing the beer to foam as the volume decreases. The confusing part to me is that I am monitoring the pressure gauge on the unitank through the whole process, and it's never dropping, so I can only assume the problem lies elsewhere.
Has anyone had similar issues, and if so, how did you fix it?