but don't tell them what your using it for

Robert H wrote:

Where to get a C02 tank?

Look in your yellow pages under welding suppliers, every major city
has at least one, or wholesale beverage suppliers, (they sell C02
tanks to restaurants) or fire extinguisher suppliers, (not fire
stations, that is silly)

I have always bought my tanks and had them refilled at gas/welding
suppliers with no problems what so ever.

Robert Hudson
www.aquabotanic.com