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 Sirius
Saturn Ascends
Registered: 04/20/08
Posts: 1,540
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Last seen: 9 years, 1 month
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 Cheap CO2 
#1093 - 04/20/08 01:08 PM (17 years, 1 month ago) |
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A friend was reading around and noticed a suggested way of producing some CO2 for plants, which was basically putting vinegar on baking soda. Of course, as it said, as soon as the room vents its gone, and it would require someone going in and doing it daily and whatnot. However, it seems like some sort of system for CO2 would be getting complex or spendy, and the friend is only looking at a small little project for personal use.
Is this an option; does it actually work? Are there better alternatives that wouldn't be expensive or suspicious? The friend definitely wants to make sure that the amount of available CO2 isn't a limiting factor on growth... how much baking soda and vinegar are we talking here if it does work, for a smaller room (no measurements as of yet, but let's say maybe four foot by four foot)?
Thanks for the help. 
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Sirius
Saturn Ascends
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Posts: 1,540
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 Re: Cheap CO2 [Re: taharka]
#1372 - 04/20/08 02:18 PM (17 years, 1 month ago) |
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Most intriguing. Where can I find more info?
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Sirius
Saturn Ascends
Registered: 04/20/08
Posts: 1,540
Loc: The Milky Way
Last seen: 9 years, 1 month
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Re: Cheap CO2 [Re: taharka]
#1608 - 04/20/08 02:50 PM (17 years, 1 month ago) |
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Quote:
taharka said:
I just filled a jug with warm sugar-water and added a pinch of yeast, shaking well. CO2 was bubbling out visibly the next day.
This is definitely the way to go then, it would seem. My friend can't wait to try it out. 
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Sirius
Saturn Ascends
Registered: 04/20/08
Posts: 1,540
Loc: The Milky Way
Last seen: 9 years, 1 month
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Re: Cheap CO2 [Re: Yrat]
#4648 - 04/21/08 07:24 AM (17 years, 1 month ago) |
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Well, I don't think my friend would be able to go about the free dry ice thing, but the sugar-water/yeast idea definitely seems to be the best way to go. My friend hasn't done any measurements yet, but its looking like either 3 square feet or possibly 6 square feet of floor space (depending on an adjustment being made... doors opening into a room SUCK  ). The room is pretty tall, maybe ten feet?
How much CO2 producing jugs would it take for that kind of space? My friend wants to give them as much CO2 as they need, and then some.
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Sirius
Saturn Ascends
Registered: 04/20/08
Posts: 1,540
Loc: The Milky Way
Last seen: 9 years, 1 month
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Re: Cheap CO2 [Re: SmallTime]
#5172 - 04/21/08 01:52 PM (17 years, 1 month ago) |
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Well, proper ventilation won't be that possible for my friend due to the logistics of the room, unfortunately, and a propane generator might be a little too advanced for what he's looking to do. There's not too much room or anything, but maybe after he grows for awhile its something to look into.
Of course, he's more than willing to line the room with bottle after bottle of the yeast stuff. Would a jug of sugar-water/yeast start producing CO2 right away, or does it take a few days before that begins? Also, would it produce the same amount continuously until it has reached its limit, or is there some sort of curve? I would think that starting different jugs at different times would help to bring some consistency in the release - just need some more info on that in order to figure it out.
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Sirius
Saturn Ascends
Registered: 04/20/08
Posts: 1,540
Loc: The Milky Way
Last seen: 9 years, 1 month
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Re: Cheap CO2 [Re: Yrat]
#5203 - 04/21/08 02:15 PM (17 years, 1 month ago) |
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It'd be fun to look into homemade alcohol later, definitely.
One question then about how many jugs can be stuffed in the room, how many do you think would be necessary? I wouldn't think the space would be more than 6' by 6' floor space, with probably a 10' ceiling...
Is there any good cheap way of measuring CO2 levels?
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Sirius
Saturn Ascends
Registered: 04/20/08
Posts: 1,540
Loc: The Milky Way
Last seen: 9 years, 1 month
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Re: Cheap CO2 [Re: niteowl]
#5205 - 04/21/08 02:15 PM (17 years, 1 month ago) |
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Quote:
niteowl said:
What I did last time I tried to grow, was just put a big glass of warm sugar water, near my plants, and added a half of a package of yeast and stirred.
How many plants did you have?
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Sirius
Saturn Ascends
Registered: 04/20/08
Posts: 1,540
Loc: The Milky Way
Last seen: 9 years, 1 month
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Re: Cheap CO2 [Re: araucaria]
#5396 - 04/21/08 03:53 PM (17 years, 1 month ago) |
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Quote:
araucaria said:
make sure you stop the CO2 production in the dark cycle
During the flowering phase, you mean? Why should this be done?
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Sirius
Saturn Ascends
Registered: 04/20/08
Posts: 1,540
Loc: The Milky Way
Last seen: 9 years, 1 month
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Re: Cheap CO2 [Re: araucaria]
#5504 - 04/21/08 04:50 PM (17 years, 1 month ago) |
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Erb posted something that seems to debunk the dark cycle during vegetative growth for rest and whatnot. Here's the thread:
http://www.growery.org/forums/showflat.php/Cat/0/Number/4843/an/0/page/0
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Sirius
Saturn Ascends
Registered: 04/20/08
Posts: 1,540
Loc: The Milky Way
Last seen: 9 years, 1 month
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Re: Cheap CO2 [Re: Hanky]
#8176 - 04/22/08 07:41 AM (17 years, 1 month ago) |
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Would you suggest stopping CO2 production like someone did above? My friend is definitely keeping the light on 24/7 during veg. 
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Sirius
Saturn Ascends
Registered: 04/20/08
Posts: 1,540
Loc: The Milky Way
Last seen: 9 years, 1 month
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Re: Cheap CO2 [Re: Hanky]
#8321 - 04/22/08 10:56 AM (17 years, 1 month ago) |
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Quote:
Hanky said:
The possibility for increased yield is there to be explored.
Keep us posted. Is there the possibility that it will take longer to finish?
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