ok so somehow my apfelwien backed up my co2 lines and into my Rye IPA (Damn!) not too much but there is still apfelwien droplets etc in my co2 lines, after I cleared them out.
Odd thing is, all the shutoffs in my manifold have check valves. That one must be bad. But why it backed up, I dunno, they are all on the same pressure.
Anyway back to my question, what's the best way to clean these lines out to prevent any nastiness?