DIY CO2 Ista 3 in 1 diffuser
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Old 08-27-2013, 11:25 PM   #1
Cwy0608
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DIY CO2 Ista 3 in 1 diffuser


Hello all,

I am a fairly newbie as a planted tank. But a few weeks ago I bough a ista co2 3 in 1 diffuser.

Here is a link of one I bought

[Ebay Link Removed]

I hook up the Co2 system but no bubbles are coming out. I let it sit a few days still no bubbles. Then I caulk all the opening to make sure their is no leak.

It still didn't work, I then took the CO2 ceramic disk and soak it I bleach to see if it was clogged. When I took the ceramic disk out bubbles came out but they were big. Therefore I know my yeast system is working. But when I put the ceramic disk back on no bubbles come out. In fact their a pocket of air inside the diffuser. Its accumulating co2 underneath the disk.

Does anyone know whats wrong?
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Old 08-27-2013, 11:56 PM   #2
Darkblade48
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How long are you waiting?

Some of the ceramic diffusers do not work with DIY CO2 as it does not generate sufficient pressure.

You could also have a leak despite having already checked for them.
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Old 08-28-2013, 01:24 AM   #3
Cwy0608
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Default Diffuser

I don't know I just bought a glass diffuser. I bought a 3 in 1 small insta diffuser. Any ideas?
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Old 08-28-2013, 01:33 AM   #4
Lornek8
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Like Darkblade48 said.
Quote:
Originally Posted by Darkblade48 View Post
Some of the ceramic diffusers do not work with DIY CO2 as it does not generate sufficient pressure.
Did you get the large model or the small model?
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Old 08-28-2013, 02:47 AM   #5
Cwy0608
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I got the smaller model, have you use it yet?

I just recently modified my system. I have my yeast connected to a check value to the diffuser.

It was from my yeast to bubble counter to check value then to diffuser.

I guess Ill see in a couple of day.

I can squeeze the bottle and a few bubbles with accumulate under the ceramic disc.

Please help
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Old 08-28-2013, 03:14 AM   #6
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Quote:
Originally Posted by Cwy0608 View Post
I got the smaller model, have you use it yet?

I just recently modified my system. I have my yeast connected to a check value to the diffuser.

It was from my yeast to bubble counter to check value then to diffuser.

I guess Ill see in a couple of day.

I can squeeze the bottle and a few bubbles with accumulate under the ceramic disc.

Please help
What kind of check valve are you using? Your setup might not be generating enough pressure to crack the check valve either.

If you have to squeeze the bottle and only a few bubbles accumulate under the ceramic disc, I would suspect a leak somewhere.

Either that, or the yeast mix is dead (perhaps you used water that was too hot, etc).
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Eheim Pimp #362 - Eheim 2213 x2, Eheim 2028, Eheim 2217, Eheim surface skimmer and Eheim autofeeder.
Victor Pimp #33 - HPT272-125-350-4M
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Old 08-28-2013, 03:19 AM   #7
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As has been said a few times. Some diffusers are not designed for DIY CO2 and will not work without a pressurized system. To get the fine bubbles out of the diffuser the CO2 needs to be forced through the ceramic disk. If there isn't sufficient pressure in the bottles no CO2 will come out of the diffuser and it'll either leak through a joint somewhere or blow something up, whatever is the weakest link in the system. All you can really do is wait a few days to see if the system will build enough pressure to allow the diffuser to work. Like you said, bubbles come out if you remove the ceramic disc and also get trapped under the ceramic disc so you know the yeast if producing gas.
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