Homemade c02 diffuser isn't working right..

[Cowardlyslimeball]

Hi everyone!
I just set up a homemade bottle c02 diffuser and it's been a day but still no bubbles. There's 150 grams of sugar, 3 grams of active yeast and about 500 grams of warm water.
I set it up last night and this morning when it wasn't working I asked my chemistry teacher about it and he said there's no enough pressure. He suggested dry ice in a jar filled with warm water, which Ive never heard before. What do you guys think?

 

[kps]

Dry ice would give you CO2 but would be hard to control the flow, more than likely your setup has a leak somewhere. Also what are you using for the actual diffuser? some require 20 to 30 psi to work correctly, start with a low pressure airstone until you get your sugar CO2 working correctly and then move up to something that requires more pressure but gives you finer bubbles.

 

[RayClem]

Remember that starting your yeast culture with warm water might not be sufficient. The activity of yeast is temperature dependent. If you are using an active dry yeast, the ideal temperature is 100-110F, but some types of yeast designed for bread machines like it even hotter 120-130F. If you started the yeast in lukewarm water, but then let it cool off to room temperature, the activity will decrease.