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Old 20-04-2003, 07:22 AM
Jim Miller
 
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Default co2 DIY slowing down...when to change bottle?

iirc the problem is that while producing co2 the other output product is
ethanol which starts to poison the yeast.

diminishing returns...

jtm

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"Jody" wrote in message
...
Well, you could try adding another 1/4tsp of yeast and see if you can keep
it going another week or two. I would say 4 weeks is the max you will ever
be able to get. Depending on the size of your tank, two bottles going at
once via the T connector might be too much CO2; 26ppm is pretty high
already. You just have to use your best judgement on when to change. If
you got an initial 0.5 drop in pH for example, and it comes back up more
than 0.2 or 0.3, you might want to change it or recharge it as suggested
with more yeast.

Jody

"Dave M. Picklyk" wrote in message
...
My C02 DIY has been running for 9 days now at 26ppm, 7.1ph. Now the Ph has
gone up to 7.2, meaning I have about 21ppm of C02. I have an airstone
attached to the hose so I can't really count the bubbles but I believe the
stream has slowed a tad. When should I hook up a new bottle? Or should I

get
one going now and attach a new one with a T connector?

How much should the ph go up and c02 go down before changing? I don't any
extreme changes to mess things up.

Dave.