Yeah, this doesn't sound safe to me. Compressed air tanks are usually pretty thin. CO2 tanks are thicker and meant to withstand over 1000 psi.
Buggy Top Brewing Company
On Deck: Blueberry Blonde; Peanut Butter Stout; Bacon Beer
Bottled: Winter Warmer; East India Porter; Tripel; Smoked Cranberry Stout; Leftover Pale Ale;
Kegged: Porter; Bock; Kitchen Sink (Belgian Pale Ale)