I finally was able to purchase a 2 keg set up (thanks pedal biker). I am planning to put my CA steam into it tomorrow. I am in the process of cleaning and sanitizing the equipment (PBW and Starsan) and suddenly began to wonder if I should clean or at least sanitize my gas lines. I don't think I have come across this answer before. I am not usually an infection-paranoid brewer but I was thinking it might not be such a bad idea, as any contamination present will be blown into the beer.
Feel free to tell me to STFU and have a homebrew, I was just wondering what you guys do with the gas lines.