diy co2 and depth - The Planted Tank Forum
 
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post #1 of 12 (permalink) Old 01-15-2008, 02:08 AM Thread Starter
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diy co2 and depth

i search for this topic and seen to find nothing about it...
my tank is 34g tall tank... its 23 inches tall, not that big at all...
i noticed that when i place my diy co2 lower then 6 - 7 inches from the water surface, the bubble will not come out, it just comes to a halt... i noticed that with the hagen ladder/setup as well... is anyone else having this problem? maybe a leak? but it works just fine with in that 6 - 7 inches...
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post #2 of 12 (permalink) Old 01-15-2008, 02:12 AM
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the deeper you place the CO2, the more time it take to see bubble because it need time build up CO2 gas to kick out high pressure in deep water
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post #3 of 12 (permalink) Old 01-15-2008, 02:23 AM
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mahoro you read my mind, i was about to make a thread about this, same thing is happening to me. I have a 2 apple juice bottle setup.
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post #4 of 12 (permalink) Old 01-15-2008, 02:41 AM
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as stagius says, the deeper u go, the more pressure the water acts upon the diffusor. at a certian point, the pressure gets too high and will not work. it may still work if ur system can generate enough pressure.
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post #5 of 12 (permalink) Old 01-15-2008, 03:26 AM
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so when it doesnt generate enough pressure does it mean you need a new mix?
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post #6 of 12 (permalink) Old 01-15-2008, 03:28 AM
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What kind of bottles are you using?
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post #7 of 12 (permalink) Old 01-15-2008, 03:32 AM
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this is not really my thread but im using 2 apple juice bottles. Mahoro are you using same thing or 2L soda bottles?
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post #8 of 12 (permalink) Old 01-15-2008, 04:41 AM Thread Starter
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yeah... thats what i was thinking too... but like i said... i didn't think my tank with big enough to have that much pressure...
i am using 2l bottles worth of the mix, but break down into 4 gatorade bottle that is all connected together... the soda bottle is just too weak
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post #9 of 12 (permalink) Old 01-15-2008, 07:33 AM
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you may have to just give it a little while. I don't see why the yeast wouldn't be able to produce enough co2 to make enough pressure to compensate for how deep your co2 is in the tank... even if the depth of the tank created too much pressure, it would just make your gatorade bottle's explode eventually...


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post #10 of 12 (permalink) Old 01-15-2008, 11:23 AM
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exactly so if your not getting enough pressure does it mean you need a new mix even though its been only 3 days after mix?

Quote:
Originally Posted by stev0205 View Post
you may have to just give it a little while. I don't see why the yeast wouldn't be able to produce enough co2 to make enough pressure to compensate for how deep your co2 is in the tank... even if the depth of the tank created too much pressure, it would just make your gatorade bottle's explode eventually...
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post #11 of 12 (permalink) Old 01-15-2008, 12:17 PM
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Could also be a leak. Or even the wrong type of tubing.
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post #12 of 12 (permalink) Old 01-15-2008, 06:14 PM
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I had a fit trying to get my CO2 to work after adding a second bottle, I finally figured out that the scrap of tube I'd used between the new bottle and the T wasn't CO2 proof. I had tried to use a gang valve to connect the bottles instead of a T, I think I was loosing some CO2 there as well.
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