not being able to produce co2 in diy yeast - The Planted Tank Forum
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post #1 of 28 (permalink) Old 08-12-2011, 05:28 AM Thread Starter
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not being able to produce co2 in diy yeast

my diy yeast sugar is not being able to produce co2 since 3 days now. heres what i did. 2l coke bottle, filled with luke warm water (38-40C) mixed sugar till it dissolves, aded yeast half tea spoon mixed and fixed to my setup. where am i wrong. my water is 7.3ph.
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post #2 of 28 (permalink) Old 08-12-2011, 05:51 AM
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check for leaks
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post #3 of 28 (permalink) Old 08-12-2011, 06:02 AM
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Quote:
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check for leaks
^It's a leak

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post #4 of 28 (permalink) Old 08-12-2011, 06:39 AM
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It could also be old yeast. But listen for a leak, its super easy to find on a DIY co2 setup. Push on the bottle pretty well and if there is pressure in the bottle then there is more than likely a leak...Bad yeast normally doesn't produce much pressure.


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post #5 of 28 (permalink) Old 08-12-2011, 07:25 AM Thread Starter
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well if i squeeze the bottle, the bubbles come from bubble counter. the yeast is brand new.
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post #6 of 28 (permalink) Old 08-12-2011, 12:38 PM Thread Starter
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any comments?
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post #7 of 28 (permalink) Old 08-12-2011, 01:36 PM
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well if i squeeze the bottle, the bubbles come from bubble counter. the yeast is brand new.
The yeast could have been old in the store or miss handled at the store.

Checking for leaks, if you have hemostats clamp off the hose to the bubble counter then check for leaks (Seeing if the system holds presure that way)


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post #8 of 28 (permalink) Old 08-12-2011, 03:02 PM
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check for leaks, shake the bottle little bit, if the shaking doesn't help, and you're sure you don't have a leak, restart.


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post #9 of 28 (permalink) Old 08-12-2011, 04:40 PM
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Sounds like a leak.
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post #10 of 28 (permalink) Old 08-12-2011, 07:25 PM
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It could be your tap water. If I use tap it takes a week to start seeing bubbles. If I use treated R/O water it takes about 2 days max.
But I would look into the leak first.

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post #11 of 28 (permalink) Old 08-12-2011, 08:03 PM
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I am using this recipe. It took me about 1 hour and 30 minutes the most to see bubbles.

http://www.aquatic-eden.com/2006/09/...intensity.html
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post #12 of 28 (permalink) Old 08-12-2011, 08:17 PM
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I say leak. Make sure the cap is on tight and everything is siliconed well together.

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post #13 of 28 (permalink) Old 08-12-2011, 09:12 PM
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Open the bottle and smell. If it's yeasty smelling, and maybe a bit of an alcohol scent, then the yeast are working and there is a leak. Also listen carefully to hear tiny tiny bubbles popping (you can usually see them as well if you look closely.) If the water is fairly clear, rather than cloudy, and you can't see, smell, or hear anything happening in the bottle, you either got a bad bit of yeast or possibly cooked them when you added water that was hotter than you thought. I'd put money on a leak, honestly.
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post #14 of 28 (permalink) Old 08-12-2011, 09:51 PM
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you should activate(?) the yeast first in a seperate cup of slightly warm water. i like to add a pinch of sugar to that water as well just to get things going. when you do this let the yeast activate for about 15 mins, by that point the surface of the water should be foamy. if not you probably have bad yeast or you killed the yeast with hot water. they are prety sensative to hot water. while your waiting for the yeast to activate dump your sugar and warm water into your bottle and try to disolve as much as possable. if you follow these steps, and see the foam on the water with the activated yeast but its still not working you definatley have a leak.
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post #15 of 28 (permalink) Old 08-13-2011, 03:19 AM
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Smell the lines..

Use your nose and follow the tubing lines and smell for the leak at junctions.
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