Is anyone having trouble finding paintball places that will fill CO2? I was planning on putting together a CO2 system as outlined by the OP since it would be nice and compact. I stopped by a paintball supply store, and was able to buy a used on/off for $5 but they now use compressed air instead of CO2!
I live within a mile
of 3 different paintball shops/fields and all
of them use compressed air now!
... figures! I'm in central NJ, so I'm not sure if this is the case elsewhere.
I was trying to avoid buying a larger tank for the sake of space, and that the nearest beverage/welding supply is quite far from me to get it filled. But it looks like I may end up having to go this route after all.
If I do end up using a "real" sized CO2 tank (will probably get a 5#), is there any reason I wouldn't be able to just put the same kind of needle valve "downstream" of a standard regulator?
Alternatively, if I get a double gauge primary regulator (like for a kegerator - first gauge gives bottle pressure, the second "output" pressure is user set), do you think I could use that to get the flow low enough for 2-4 bps, or will I still need the needle valve?
If I can't find a local place to fill a paintball tank, I have no use for the on/off. If this ends up being the case, I'll offer it up free for the cost of shipping in the swap forum.