FIRE UP wrote:
We have a company here in Lake Havasu City called Praxair. They handle any and all types of gas, bottles, hydrotesting, and all that. Any welding supply will have capabilities of filling CO2. I really like it 'cause you don't have to sit there and listen to those darn little 12V compressors labor to top off or fill a tire.
I also modified the valve in the cylinder so the bottle can be used in a horizontal position. It's stored that way in our Jeep. So, when it comes time to air the tires back up from a day on the trails, I just pull out the hose, turn on the valve and, air things up. I go from 10 psi trail pressure to right at 30 psi street pressure in 3 minutes total, for all four tires, DONE! There isn't a 12V compressor that can keep up with that.
Scott
Not sure if automotive/RV tires are the same as bicycles but when I fill up a tire with CO2, it's flat the next morning. My understanding is that a lot of rubber is very permeable to CO2. I don't have first hand knowledge other than bicycles but just putting it out there.