DIY co2 not working right - The Planted Tank Forum
 
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post #1 of 13 (permalink) Old 12-01-2007, 04:50 PM Thread Starter
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DIY co2 not working right

I cant seem to get my 2L DIY to constantly supply co2 bubbles. I followed the instructions here:
https://www.plantedtank.net/articles/DIY-Yeast-CO2/7/
but it will only generate bubbles if i shake the solution. it has been sitting overnight and is running straight into tank just to test the solution rate. I will use a diffuser later, but it seems I am doing something wrong. Im using sillicone tubing, a check valve, 2L pepsi bottle with siliconed tubing through the cap. 2 cups sugar water to almost the top, 1/2 tsp of red star yeast, and used lukewarm water. any ideas/???
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post #2 of 13 (permalink) Old 12-01-2007, 05:24 PM
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More time.....
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post #3 of 13 (permalink) Old 12-01-2007, 06:29 PM
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yes i agree wait ....patience grasshopper patience
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post #4 of 13 (permalink) Old 12-01-2007, 07:32 PM
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Mine works great. I only use 1 cup sugar to 1/4tsp with feishmanns yeast. Lasts about 21/2 weeks
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post #5 of 13 (permalink) Old 12-01-2007, 09:51 PM
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your yeast might not be active. it might be dead.
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post #6 of 13 (permalink) Old 12-01-2007, 11:33 PM
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Yup possibilities:

- dead yeast, try a new batch, use warm or cold water when mixing
- airline leak somewhere, so none of it goes to the end, not causing any bubbles
- give it time
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post #7 of 13 (permalink) Old 12-02-2007, 12:28 AM
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Also what is the temp in the room?
If it's too cold, the yeast will work very slowly if at all.

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post #8 of 13 (permalink) Old 12-02-2007, 02:36 AM
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Well I doubt it's the temperature--it can't get too cold indoors, assuming you have minimal heating. The bottles in my room are at 17-18 degrees celcius all the time (and lowering) and they work fine.
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post #9 of 13 (permalink) Old 12-02-2007, 11:34 AM
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Quote:
Originally Posted by dekstr View Post
Well I doubt it's the temperature--it can't get too cold indoors, assuming you have minimal heating. The bottles in my room are at 17-18 degrees celcius all the time (and lowering) and they work fine.
Happens quite often. Some people have tanks in basements, or other places where they turn off the heat during the night.

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post #10 of 13 (permalink) Old 12-02-2007, 02:29 PM
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Hmm that makes sense then.
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post #11 of 13 (permalink) Old 12-03-2007, 07:54 PM
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I dunno how much pressure the DIY actually will put out, but it isn't impossible the check valve is stuck...or has to strong a spring in it... something to look at.

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post #12 of 13 (permalink) Old 12-05-2007, 06:45 PM
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Why are you using a check valve anyway? Seems unnecessary.


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post #13 of 13 (permalink) Old 12-05-2007, 06:49 PM
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Quote:
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Why are you using a check valve anyway? Seems unnecessary.
I use one as well close to the bottle for when I remove the cap to make new "juice", dont want water dripping into my cabinet.

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