has anyone tried this?

Im thinking about using one of my pony tanks and a old first stage reg to make a homemade power tank.

I could then run a line from one of the low pressure outlets(125psi I believe) to another regulator that wold then knock it down to a usable pressure.
Then I can leave the old first stage and all the components in the car and just bring a pony tank when I need it.

any input would be greatly appreciated.

BTW, I know it probably wont be suitable for setting a bead, but I think it could do a good job filling a few tires when your on the trail.

thanks
Mike

I know someone who did the same thing with a barbecue propane tank.

i was actually thinking about doing something similar to this with a SCBA bottle (air bottle) from the fire department...we use these things all the time for all of our air tools so it can easily be made to work

You wouldn't have enough volume. I'm not sure how big a "pony tank" is, but a regular scuba tank will only hold enough gas to fill maybe 2 or 3 tires. The difference is that CO2 is stored in liquid form in the tank.... you can't do that with a scuba tank. Plus while CO2 is in the tank, it is only stores under a couple hundred PSI, while gas in a scuba tank is under several thousand psi, is it not? Which would make the scuba tank much more dangerous if the regulator got bumped offroad.

i was actually thinking about doing something similar to this with a SCBA bottle (air bottle) from the fire department...we use these things all the time for all of our air tools so it can easily be made to work

Thats where I got the idea from. We just dont have any Scott bottles that I could take. We are all carbon and composite, and when we use them until they are no longer serviceable (out of hydro or gouged).

After doing some more reading I dont think I would ever have to worry about breaking the stem with proper care, but co2 would be more efficient.

I am now looking at co2 tanks. It would be the perfect multi purpose tool. co2 for the kegerator during the week and a homemade power tank for the trail. It only requires a fixed pressure reg and its ready to go. I have found new 20lbs tanks with current hydro for less than $100. I found one local about 6 months ago for 30 but didnt think I would ever need it.

thanks again
mike

http://www.stu-offroad.com/recovery/co2/co2-1.htm