U'll prob just give a co a 50$ deposit on a bottle and (basicly renting) and when done return, if the place swaps co2 bottles, if they fill um even better to buy prob, i use a welding place up here in the Saratoga area, but sody places are good too, u may want to call around a few places and see whats avaible and see what works for u ????
any other info i can help with feel free to PM \
peace
mike