So, I "aquired" a huge helium tank this morning, wondering if I could convince someone to put CO2 in it. Long story short, I found a guy who is good buddies with the Airgas guy. He talked the Airgas guy into swapping it out for a CO2 tank for me.
Bottom line... I just got a 20 lb CO2 tank free, and filled for $15.
Now I need a regulator. Anyone know where I can find one on the cheap?


