Yes, it does depend. It depends on your yeast, temp, how tight the rig is,
etc. I usually set mine up before going to bed, and of course have bubbles
in the morning. I have stayed up on occasion and heard bubbles after about
an hour. I used the juice bottles for quite awhile since I liked the sturdy
bottoms and larger openings. But I finally decided that they leaked too
much for me out of the lid. Try pressing down on the lid and see if you get
more bubbles. If you do, that means your lid is leaking. I switched to the
soda bottles. It actually makes more sense using the soda bottles since
they are made to hold in, yes, CO2! The lid fits tighter and has more
threads. I hated to switch; the juice bottles just *feel* better.

Jody

"kush" wrote in message
...
May I? It depends how warm the water is to start. In a two-liter juice
bottle, using room-temperature water and bakers yeast, about 20 minutes.
I
only get a bubble a second for the first hour or two. After about a week,
at 68º, I get approximately 1 bubble every five to six seconds.

Frank Mamone wrote in message
.. .
Jody,

How long does it take for you to get bubbles after you prepare a fresh
batch?

Thanks,

Frank

"Jody" wrote in message
. ..
That's not a lot of bubbles for a fresh batch of a DIY yeast mixture.
Maybe
you have a leak? I usually get about a bubble per second with a new
batch.

Jody

"Bob A" wrote in message
...
First I want to thank everyone who has helped me get started on DIY
CO2,
and
especially Kush who told me I might be using water that was too
hot...
that
was in fact the problem.

I also read Leigh's response to someone regarding doubling the
amount
of
mixture in the bottle, and did that, and it gave me more frequent
bubbles
than I had had, but the pH didn't go down.

I'm getting a bubble about every 3-4 seconds, piped into the intake
of
my
Emperor 400 power filter. My CO2 normally has been about 2-3, now
it
is
staying a fairly stable 8ppm (KH 2 & pH 7).

I am even seeing a little pearling which is very rewarding. My
question
is,
should I be satisfied with this? I would love to see more pearling,
but
I
don't necessarily want extra-rapid plant grown... I would like them
to
grow
of course, but.... I think you understand.

Also, I'm suspecting the Emporer is not making the best use of the
CO2
I'm
getting. Are there any suggestions that aren't (1) very expensive
(2
and
more important) won't look ugly in my tank.

thanks so much,

bob