How many BPM from a 2 litre pop bottle - The Planted Tank Forum
 
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post #1 of 4 (permalink) Old 02-27-2006, 10:36 PM Thread Starter
 
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How many BPM from a 2 litre pop bottle

Hi
Can anyone tell me how many bubble a min your likely to get from a co2 diy 2 litre pop bottle.
I know this depends on the recipe (im usein 3 cups sugar,1teaspoon yeast,1 teaspoon soda)
thank you
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post #2 of 4 (permalink) Old 02-27-2006, 11:12 PM
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bubbles per minute can vary a lot depending on the size of the opening of the tubing in your bubble counter, how much water is in the bubble counter, etc. Essentially, it depends on the size of the bubbles. I get between 20 and 60 bubbles per minute in my two bubble counters, the difference being the size of the bubbles, even though I think the CO2 generation is about the same.
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post #3 of 4 (permalink) Old 02-28-2006, 02:17 AM
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If you put the bottle in a water bath and heat the water a bit you can increase the bubble rate a lot.

Hoppy
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post #4 of 4 (permalink) Old 02-28-2006, 12:49 PM Thread Starter
 
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Its been nearly 1 day now and its up to 30 bpm and giving me 30 ppm co2,which is fine.
Yeah i had two hagens on a beer heat mat and that maxed it out like to 10 bpm each.
Just wish i never wasted my money on them now,so im gonna sell them both on ebay...
still you live n learn
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