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Old 10-15-2007, 04:49 AM   #21 (permalink)
 
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Default Regarding the Co2 bubbles

Regarding the Co2 bubbles the idea seems to be either to mix the bubbles into the water via a powerhead or keep the bubbles under water as long as possible with a ladder or similar device.

Heres what I did.
I connected my DIY Co2 to the intake of the crappy little filter that came with my $30 Walmart ten gallon tank. I did read somewhere that Co2 will break down metal and some plastics. I am counting on the fact that Co2 is mixing with water so hopefully my filter will not be destroyed so fast.
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Old 10-15-2007, 10:48 AM   #22 (permalink)
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Default Re: The Nyberg CO2 Method

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Originally Posted by jeremy1 View Post
So, can this method be used with the first set up? I'm confused about leaving the yeast in the container from previous batch. Do I have to add yeast to my initial set up. This is my firt time using the fermentation method. thanks.

Jeremy
depends on the yeast - "top fermenters" - most bread/baking yeasts - this won't work as the stuff at the bottom is dead. Beer/Champagne yeasts - "bottom fermenters" - this works well. If you're totally out of yeast, I'd suggest mixing old stock well, pouring 95% out and keeping the remainder. If it wasn't totally exhausted, you'll get a restart (probably a bit slow).

Other concern: Baking Soda - I've read that the change in pH is a lot less stressful on the yeast than the presence of excess Na ions is, so it's probably best to skip the baking soda.
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