View Full Version : DIY CO2 diffuser not working

01-16-2008, 01:30 AM
Hey all,

So I just bought one of those glass CO2 diffusers for my DIY CO2. I plugged it into the airline tubing, but no bubbles. The soda bottle is very tense and even when I squeeze the bottle, no bubbles come out.

Do I have to let the system accumulate higher pressures? I'm worried that the soda bottle will burst and I will have yeast everywhere.

http://cgi.ebay.com/Nano-Co2-diffuser-Live-aquarium-plant-fish-tank-T19_W0QQitemZ260202643909QQihZ016QQcategoryZ66795Q QcmdZViewItem

01-16-2008, 02:06 AM
the bottle would swell to at least double its normal size before bursting. Did you use a check valve? I had a bad one that blocked the line

01-16-2008, 02:40 AM
There is a check valve, but I'm positive it is not clogged and is installed in the correct direction. I had the airline just in an airstone before without any problems getting any CO2 out.

01-17-2008, 12:40 AM
i stopped buying stuff from that ebay seller. First they ship everything from Malaysia which takes forever. Plus the plants i ordered came dead.

I can't be certain but if it was my guess they sent you some cheapo broken diffuser.

01-17-2008, 12:56 AM
If you detach the diffuser can you blow air through it to make sure it even works?