Couple questions about disconnecting my aquatek CO2 regulator - The Planted Tank Forum
 
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post #1 of 12 (permalink) Old 08-04-2013, 10:58 PM Thread Starter
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Couple questions about disconnecting my aquatek CO2 regulator

I was looking for a video or something of the sort on how to properly take off the Aquatek mini CO2 regulator on my paintball tank. Also at what PSI should I consider swapping it out for a full one, right now it's sitting around 700 PSI. Thanks!
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post #2 of 12 (permalink) Old 08-04-2013, 11:18 PM
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Usually, a full cylinder will sit around 800-1000 PSI, depending to what point it was filled, as well as the ambient temperature.

Once the liquid CO2 has been exhausted, the measured pressure will begin to rapidly drop; it is at this time you will want to swap the cylinders.

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post #3 of 12 (permalink) Old 08-05-2013, 01:37 PM Thread Starter
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Quote:
Originally Posted by Darkblade48 View Post
Usually, a full cylinder will sit around 800-1000 PSI, depending to what point it was filled, as well as the ambient temperature.

Once the liquid CO2 has been exhausted, the measured pressure will begin to rapidly drop; it is at this time you will want to swap the cylinders.
Is there any special way of doing this or do I just take a wrench to it?
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post #4 of 12 (permalink) Old 08-05-2013, 01:52 PM
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I'm new to this, but I had a demonstration of this just before I bought mine! While I haven't done it myself yet, it appeared that the salesperson closed the needle valve tight, and then opened the adjustment screw so any gas within the regulator escapes. This allowed him to unscrew the regulator quite easily. I'm not sure if the process differs for the paintball setup, but it might come in handy nonetheless!

Good luck! =]

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post #5 of 12 (permalink) Old 08-05-2013, 01:58 PM
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Just leave everything as is and use a wrench to unscrew the regulator from the tank. This way when you replace the tank you should be pretty close to your original settings.

Somehow, the advise yo close the needle valve made me cringe.

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post #6 of 12 (permalink) Old 08-05-2013, 02:10 PM Thread Starter
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Well if paintball tanks had the ability to close the cylinder so that no more CO2 escapes it would make sense to shut the needle valve, since they don't I don't think you should. It would build up a lot of pressure and some sort of backfire, at least I think, correct me if I'm wrong.
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post #7 of 12 (permalink) Old 08-05-2013, 03:00 PM
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Unless you can turn off the pressure then I wouldn't suggest taking it off until its all gone. Taking off a regulator while the pressures on is just plain stupid and an easy way to get hurt. Turn of the pressure then take a wrench to it.
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post #8 of 12 (permalink) Old 08-05-2013, 03:38 PM
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I've removed mine multiple times with the tank full. I don't close the needle valve or anything, just twist the paintball tank off quickly and it makes a pop as the pin valve on the tank closes. Don't put your hand or any other body part near the space between the tank and regulator, since there is a possibility of rapidly escaping gas that could harm you.

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post #9 of 12 (permalink) Old 08-05-2013, 08:20 PM
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I don't use a wrench on mine at all. Once it's empty I leave the needle valve how its set and just twist the tank off. There's almost no resistance on it
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post #10 of 12 (permalink) Old 08-06-2013, 07:14 PM Thread Starter
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I don't use a wrench on mine at all. Once it's empty I leave the needle valve how its set and just twist the tank off. There's almost no resistance on it
At one point do you consider it empty?
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post #11 of 12 (permalink) Old 08-06-2013, 09:00 PM
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0 pressure in the high pressure guage. I can tell when the co2 is getting low because more bubbles come out of the diffuser and I watch the gauge daily after that. Usually takes around 10 days at the rate I run it
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post #12 of 12 (permalink) Old 08-06-2013, 11:21 PM
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Quote:
Originally Posted by sacme View Post
At one point do you consider it empty?
I consider the cylinder essentially empty when the high pressure gauge begins to decrease rapidly (i.e. shows 800 PSI one hour and then 600 PSI within a few hours).

This indicates that there is no more liquid CO2, and that only gaseous CO2 remains in the cylinder.

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