DIY CO2- Making the generator? - The Planted Tank Forum
 
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post #1 of 10 (permalink) Old 05-28-2006, 05:29 PM Thread Starter
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DIY CO2- Making the generator?

Any good links or methods?

I've tried doing a search here, but I must be linking words incorrectly because I haven't found it... I did find some good recipes, though.

Thanks for the assist.
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post #2 of 10 (permalink) Old 05-28-2006, 08:10 PM
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Here is a very good link for all kinds of good stuff.
http://rexgrigg.com/co2.htm

10 gallon hospital tank.
29 & 50 gallon - High Tech C02 enriched.
50 gallon Pond - Natural.
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post #3 of 10 (permalink) Old 05-28-2006, 08:34 PM
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Maybe generator is the wrong word...

Do you mean reactor or diffusor?


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post #4 of 10 (permalink) Old 05-28-2006, 11:37 PM Thread Starter
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The reactor...
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post #5 of 10 (permalink) Old 05-29-2006, 12:27 AM
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Get a 2 liter JUICE bottle. Not a soda bottle.

Then get a drill bit that is smaller than the OD (outside diameter) of your tubing. Drill a hole in the cap. Cut your tubing at an angle. Pull it though the cap. You might have to dip the tubing into hot water for a few seconds. Always start with a small hole. You can go up a drill bit size if needed. Can't make them smaller though.
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post #6 of 10 (permalink) Old 05-29-2006, 01:17 AM
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Make sure whatever bottle you use it's designed to handle pressure.

I'm trying out juice bottles at the moment, but I'm finding that the pressure just makes the plastic expand and I'm guessing the CO2 is now just leaking out where the opening has been warped (it isn't going into the tank, anyway).

But yeah I'd definitely take juice bottles over soda bottles if pressure isn't a problem. I assume someone somewhere makes carbonated juice.
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post #7 of 10 (permalink) Old 05-29-2006, 04:51 AM Thread Starter
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Ok... I'm following that.

Check valves? Any specific kind of tubing? I think the provided link (for rexgrigg's site) discussed silicon tubing?
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post #8 of 10 (permalink) Old 05-29-2006, 02:55 PM
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I may have discussed silicone tubing. But it would be in a negative way.

Best bet is something more CO2 proof. And a check valve is pretty much a necessity.
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post #9 of 10 (permalink) Old 05-30-2006, 02:24 AM
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using dry ice as a source of co2

has anyone ever tried using a system that involves dry ice? i think it would work since dry ice is solid co2. let us know if anyone has tried it.
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post #10 of 10 (permalink) Old 05-30-2006, 03:13 AM
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The problem using dry ice is it sublimates very quickly at room temperature. And you would need something to contain the pressure. Then once the pressure drops it won't feed gas into the water. More trouble than it's worth if you ask me.
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