DIY pressurized co2 issue - The Planted Tank Forum
 
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post #1 of 8 (permalink) Old 03-03-2014, 11:32 PM Thread Starter
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DIY pressurized co2 issue

I've been using this co2 setup on a 20oz. paintball canister for about 4 months, and finally had to get a refill. When I reattached the canister and turned it back on, it started leaking a lot and the canister frosted over. It seemed to be leaking from the ASA on/off valve itself (couldn't tell if it was from where it screwed onto the canister or from the on/off knob), not the connections to the gauge or needle valve. What could be the problem? An overfilled canister? Bad o-ring?
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post #2 of 8 (permalink) Old 03-04-2014, 12:08 AM
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Did you change the o-ring on the paintball tank between refills? When I got my first tank, I replaced the tank's O-ring immediately even before my first use, it was too thin and appeared brittle.


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post #3 of 8 (permalink) Old 03-04-2014, 01:56 PM Thread Starter
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No, I didn't change the o-ring. That could very well be the problem. Where you you get replacement o-rings, hardware store?
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post #4 of 8 (permalink) Old 03-04-2014, 03:14 PM
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Sporting supply, if they sell paintball equipment they should have them, if you can wait... ebay/amazon


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post #5 of 8 (permalink) Old 03-04-2014, 04:15 PM
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Don't over-tighten the CO2 cylinder when you go to re-mount it. Hand-tight, maybe a light tweak with some channel-lock pliers, but no tighter or you'll crush the soft goods (O-ring). I work on submarines and we ALWAYS replace the soft goods on them, so you should do the same

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post #6 of 8 (permalink) Old 03-04-2014, 06:51 PM Thread Starter
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I only ever hand-tightened the cylinder, but that's certainly good to know! I get my co2 refilled at Sports Authority, so they'll probably have o-rings, then. I can get some cheaper ones online for later. Are any particular types/brands known to be better or worse for aquarium applications?
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post #7 of 8 (permalink) Old 03-05-2014, 06:09 PM Thread Starter
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Well, crap. It's not the o-ring. Put a new one on, and as soon as the pin is depressed, gas starts leaking badly. I did manage to figure out that it's leaking from underneath the on/off knob. Ideas on how to fix it? I just need this to last another month or so; planning on using my first paycheck from my new job to get a real regulator.

For reference, 'bay #281274874540 is the ASA adapter I have.
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post #8 of 8 (permalink) Old 03-05-2014, 10:15 PM
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I'd did the ASA Valve and step up to a better and real regulator. GLA are pricey but the customer service and warranty is great from what I hear. I have an AquaTek mini paintball and the solenoid burned out after about 4 months, so did their customer service. I recently bought a new solenoid from them, so far so good.

I used to have the ASA set up but experienced a leak from inside it somewhere, it seemed there is a machined hole inside of it that was the cause. I tossed it and bought the AquaTek.
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