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Re: CO2 gone quickly

In a message dated 6/25/99 3:50:59 AM Eastern Daylight Time, 
Aquatic-Plants-Owner at actwin_com writes:

>  Date: 25 Jun 99 12:15:48 HKT
>  From: Patrick Ng <nghakkong at netscape_net>
>  Subject: CO2 gone quickly
>  Dear all,
>  I'm using a 1500g CO2 gas tank together with a Dupla "Armatur Delta" CO2
>  regulator. I set the bubbling rate at 1 bubble/sec and the gas tank this 
> size
>  should last for at least half an year (from my personal experience). 
>  my CO2 used up within a month or so. My question is what possibly went 
>  with my CO2 system. I have a commercial CO2 reactor, check valve and 
>  tubing connected to the system. Is gas leakage a possible cause of the 
> problem
>  and how do I find out where the leakage is?
>  Anyone can shed some light on it?
>  Thanks!
>  Patrick Ng


First make sure you have the nylon/fibre washer installed between the 
regulator and tank. The easiest way to check for leaks is with a soap 
solution. Use a diluted solution of dishwashing soap in a spray bottle. Spray 
all valves, regulators, connections and tubing and look for bubbles. The 
compressed gas escaping to the atmosphere will cause the soap solution to 
bubble. Some plastic tubing is incompatible with CO2. The gas will leech out 
of small permeable holes in the tubing. You may want to consider silicon 
tubing if this is your problem.

Tom Bates
Allentown, PA