Where to find CO2 cylinders (other than LFS or MO)

[JoJo]

Thanks Steve!

we are talking about a normal high pressure valve, if you open it it will release all your co2.

<font size="2" face="Verdana, Helvetica, sans-serif">That's the valve meant. My tank does have a high pressure valve. However, unlike the one you've mentioned where you just turn the dial/handle like a faucet to release the co2, the one on my tank releases co2 when it is mounted to the soda machine. The spring loaded pin in the valve is depressed by a nozzle in the soda machine which releases the co2 into the unit. Unfortunately, my regulators doesn't screw on to this valve. That's why I need to have it replaced.

As to the size of the tank being too small, It is just for testing purposes. I was given the regulators, needle valve as well as the tank. I figure would build a reactor and make sure it works before investing in a larger tank.