I have an older, but brand new co2 bottle. After getting sent all over town, I finally found a place that fills bottles. Of course they can't fill this one. Is this a "normal" bottle fill port or is it obsolete because it is older?

Unscrew the guages at the head of the bottle. It should be threaded inside the hole the CO2 comes out. The Place SHOULD Have A Fitting That Screws Into That hole.

I get mine done at a paintball supply house.

ok, I needed to remove the gauges.



I was at Dunham Sports, I assume that they are set up for paint guns. The girl said their fitting was a needle type. I guess I will go back and maybe check with someone else. She obviously did not know the gauges had to come off either.

thanks

I use the paintball places also

It sounds like the place does not know what there doing. The valve is the same as any other CO2 valve on that 10oz tank.

And no it does not have to have current hydro-test date on it like the 2.5 lb tanks and up do.

I have been filling CO2 tanks for 30 years for beer taps, race cars and paint balls guns and raced for many of those years. Too bad your not in Cincinnati, although I have no idea where your from.

Those tanks can be filled from other smaller tanks at the track with the right transfill hose and valves.

Important to weigh them after the fill and let out anything over 10 oz other wise it will blow the relief valve on it.

Paintball stuff is queer from standard CO2 bottles. I used to keep the stuff to fill the small bottles and couldn't buy the paintball hardware. Had to be in the paintball business to get it. Maybe different now. They would need to have the standard fittings to fill that bottle. Some welding supply places used to do it. Maybe get lucky and find one that still fools with them.

Here is the relief valve and the burst disc inside that you will blow if some one fills those small tanks who is not familer with them.

Weigh the tank before and after the fill and let out anything over 10 ozs of CO2 gas.

This is a trans fill hose, it must be used on those small tanks, can't pump it in there.

CO2 is cheap, so we use it to chill the bottle and then fill the bottle from a mother tank transferring liquid, not vapor.

Shoot liquid gas into tank, close valve, open other valve and discharge the liquid gas. Now the tank is cold and frosty ready for a re charge. Fill it until it is full, takes about 4 seconds and then weigh it.

We carried a 5 pound aluminum tank as our mother tank=lightweight to have in our trailer.

Steel high pressure ball valves and #4 brake line hose you can make yourself at home. I would not use water plumbing hose from the hardware store. You can use 600# brass ball valves, they just don't last as long, maybe not as safe although they never blew up on me and I went through at least 6 of them until I went to steel and steel does not last forever either as I'm on my second set of them. We use all steel valves at the shop that my employees use everyday. We trans fill everyday for many customers.

It's the only good way to fill 10oz tanks.
We replaced our CO2 tank after every run and filled them at our trailer. No we didn't use a whole tank each run, but is way too costly to get out there with a empty or partial tank. No air pressure to a B&J=nuetrel and then I could over rev my blown hemi motor and all kinds of bad things would happen.
So it was routine that it got replaced every run.

These cars can shake the tires like you have no idea, gauges would never last on our car, maybe for one or 2 runs. I also have a box of 3 broken pressure regulators from tire shake without the gauges.

Everything on TADs are compact and lightweight and tuff. That style regulator would be toast in a short amount of time on my car, plus it's huge and heavy.

I had a paintball place over fill my
bottle... on the way home it was sitting
on the pass seat with the sun on it.. the
relief valve blew and filled my Jeep with
a fog.. could see out the windshield at 70
mph

Yup,
I had friend who had his tank filled here and we weighed it. He left it in his laundry basket in his car during the summer with the windows rolled up.It got real hot in there and it blew the rupture disc and blew clothes all over his car while he was out of the car. Thought some one broke into his car and threw around all his clean cloths. LOL

Where do you buy those blow off disc

From the place that fills your CO2. If they don't have it, then a welding supply will.

I bought a 40# bottle off CL and it was even full. Went to Home Depot plumbing dept and bought a braided line. Harbor Freight for a digital scale and now I fill my own.

Where do you buy those blow off disc
[/quote]

From the place that fills your CO2. If they don't have it, then a welding supply will. [/quote]

Thanks.. I have that one bottle that needs one...
I have it taped over to keep moisture out.. glad
I had 2 bottles.. that ones been sitting in my office
for 2 years

PM me your address and I'll send you one for no charge.

Thanks... PM on the way

Same here, bought two fittings for valves and brass pipe and tee with gauge between them. Screwed onto both bottles and opened both tanks, pressure equalized, turned valves off, removed adapter, done. Pressure in little bottle is same as big one no mater what size big bottle, 900 psi for co2 I think. Finally I just put a larger bottle( 4x12 tall can't remember what lb. used a fire extinguisher bracket) tired of refilling hassle. Lasted over a month. At the time the larger bottle I bough was about $30, to do the refilling, but just ended up using it in the car instead.

Please don't take this the wrong way.

For the uninformed, doing it that way is probably best because you can't over fill the tank if you don't chill it first and pay attention to my post above. Could do it in the freezer ahead of time too, just like filling a nitrous tank-same exact deal only nitrous is too costly to chill the tank with unless you got big bucks. Seen it done.

But just because the pressure is the same does not mean you got the small tank full, most times under 1/2 full. Maybe that's why you got tired of the small tank and put in the big tank because the small tank was never actually full or even close?

CO2 is sold by weight.

My 2.5 pound bottle has been in the car a year, it still has 500 pounds in it.

PSI does not directly relate to how much volume you have left. The PSI will change with temperature. And if you had 500 pounds in it, then...

Weight is the ONLY way to tell how much gas/CO2 you have left. Got to weigh it before and after.

500 PSI says to me that you are low as it should be over 800+ PSI gas bottle/tank pressure, regulated down of course. Should always read more than 800 psi on the tank gauge.

I can normally get a full year out of the small
tank(I was using it as a throttle stop and did use
it as a shifter also for a while