DIY CO2 with large bottle? - The Planted Tank Forum
 
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post #1 of 9 (permalink) Old 01-14-2012, 08:31 PM Thread Starter
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DIY CO2 with large bottle?

So most people say a minimum of 8, 2L bottles are needed to get enough CO2. If that's the case, why not use a large bottle like a wine jug? They have 5 gallon beer making jugs for fermenting w/ CO2 releasing caps. So anyone try this? Think it would work?
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post #2 of 9 (permalink) Old 01-14-2012, 08:41 PM Thread Starter
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post #3 of 9 (permalink) Old 01-14-2012, 08:53 PM
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Ya you could make wine and supply co2 to the tank....sweet!
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post #4 of 9 (permalink) Old 01-15-2012, 02:49 AM
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Bottles much bigger than one gallon are going to be hard to handle for replenishing the solution in them, but many people do use even larger ones. Just try to limit yourself to plastic bottles, preferably bottles that contained carbonated beverages, because they are much stronger and much less apt to rupture from the pressure.

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post #5 of 9 (permalink) Old 01-15-2012, 03:59 PM
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Just to be sure - absolutely do not pressurize a glass carboy. The glass bottles for beer/winemaking are dangerous enough without making a shrapnel bomb! There are plastic ones (Better Bottle) or Pyrex (lab carboy, $$$) which could take some (not much) pressure.
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post #6 of 9 (permalink) Old 01-18-2012, 07:14 PM Thread Starter
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Quote:
Originally Posted by tentacles View Post
Just to be sure - absolutely do not pressurize a glass carboy. The glass bottles for beer/winemaking are dangerous enough without making a shrapnel bomb! There are plastic ones (Better Bottle) or Pyrex (lab carboy, $$$) which could take some (not much) pressure.
Thanks! I did notice that homebrewer stores now sell plastic buckets with CO2 outlets on top, not glass.
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post #7 of 9 (permalink) Old 01-24-2012, 11:26 PM Thread Starter
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I ended up using a 2.8L milk jug w/ twist top. So far seal is tight.
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post #8 of 9 (permalink) Old 01-25-2012, 06:19 AM
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I make wine under my tank, and pipe the Co2 into my sump. I have 2 1g jugs with the wine ingredients for my generator, which goes through a DIY bubble counter showing 1bps, then into a DIY reactor housed in my sump. Now I can grab a glass of homemade wine, and sit and watch my fish tank


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post #9 of 9 (permalink) Old 01-25-2012, 03:27 PM Thread Starter
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Pretty inventive. When I explained the concept to hubby, he thought I was making moonshine. Too funny!
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