Buyer beware on the Crystal Ice place. Several years ago they overpressurized/overfilled my 10# CO2 tank. Cost me $40 to have it recerted at ABC. And they wouldn't cover my costs. So eff them!
X2.
I went there several time to fill up my Powertank and they shorted me. Only gave me 6-8 lbs each time...
So, one time I went around back, and the guy got all pissy with me and said "you need to stay around front, only employees are allowed back here" I told him that his guys keep shorting me, so I want to watch him weigh the damn thing. I also told him about all the people on Reno4x4 saying the same thing. He was all surprised and said he didnt know that! That was the last time I went there...