For whatever reason, I'm getting a lot of foam/air in my beer line. This is only happening on a refurbed keg that holds a Czech lager I recently finished. It can't be pulling air, bc there is no leak. I would assume that in a highly pressurized keg full of beer, if it was able to pull air, beer would be coming out the leak area first. I've read several things that say I may have CO2 coming out of the solution. This could be due to irregular temps throughout the keg and possibly bc I've jammed three kegs in my fridge. Lol. I've bled it several times, but still have the same problem. Any help would be greatly appreciated. Also to note; I opened the keg after it was charged to add gelatin bc of the chill haze (which didn't do much to help btw). Not sure if that contributed to my current problem or not. Thanks in advance!! Pics are attached.