Most CO2 tanks are tested and serviced at Industrial Gas and Fire Extinguisher companies. These facilities deal with dry chemical powder and/or toxic gasses such as acetylene. Don’t poison a tank of expensive fish or ruin a keg of brew with a tank that may have spent it’s whole life hooked up to a dirty, nasty welder. Our facility tests clean gas and breathing air tanks only.
If you send us your bottle, we’ll turn it around in 2 days.