DIY: Home Made CO2 Guide

I am thinking about using this method. When is a good time to start supplying CO2?

Now work for you? lol It's anytime you want to feed them... These co2 generators only put out around 200 ppm each (rough figuring) Read a few pages back where I did the math

Any time

Keep waiting and I'll do it later at my convenience

re-opened...and spamming,abusive behaviour removed...

*WTF.. yo kev.. dude... did someone spike your drink?? you okay?? this aint you brah

Well u can always do it on a bigger scale with better equioment and bigger sturdier valves ya know go near a plumbing production shop where they make pipets and get a arrowhead jug(3gals)get bigger valve at brew shoppe and make it happen captain...

pretty cool..i just made 3 with milk jugs..minus that release valve..i just punched holes in the caps and ran plastic tubing up around my plant..i hope it helps my girls are in need of some tlc. i have a post with pictures under general growing if anyone can take a look and give some advise.

I use a very similar method, but I have a tube connected to the bottle, and a mason jar of water in the grow space. This allows me to keep my bottle outside my grow so I can change it any time. I basically check the mason jar a few times a day, and when the bubbling slows down too much, I replace it.

Thanks for the info! Keep it up!

Thanks bro, I have been trying to think of someplace where i can go to get co2. Now I know how to make it from scratch. I appreciate that. good growing and much success to you.

If this is being left open shouldnt a message or warning be put in the first post stating people are wasting their time and it doesnt work?

tontoboy said:

If this is being left open shouldnt a message or warning be put in the first post stating people are wasting their time and it doesnt work?

Click to expand...

would be helpful if you could actually go back an EDIT your own post, but I noticed this forum doesn't let you edit your post after a day or two…hella weak sauce IMHO

Just ran through this whole thread… HB glad to see you chime in with your knowledge!

I was about to try this, but looks like I'll be holding off. Since it's my first time growing, I'll wait till my 2nd season b4 I try it for shits n giggles

Also, JOKER209, I'm in tha 209 as well! nice to see another Stocktonian on the board (I knew u were in stockton for sure when you mentioned Winco HAHA)

I brew kombucha tea, which is yeast and bacteria, in a 3 gallon container (it's a ceramic dispenser for 5 gal water bottles). The method I use is "continuous" so all I have to do is drain the kombucha and add tea with sugar every two weeks or so. The kombucha culture is a weird jello like rubbery thing that keeps growing from eating the sugar. My grow room is 1.5' x 2' x 4'. The brewing seems to be making a big difference.
I'm going to move my kombucha outside the grow box and use a tube to bring the co2 to it. Then I can add more plants.

Hey ninja i just wanna keep this awesome thread alive, i gotta say i did this with 3 bottles and in one day they really liked it! its new smaller leaves grew out alot more. even if it doesnt put out a whole bunch it still adds a good amount of co2 to my medium sized grow tent which im sure the plants dont mind

here's sum pics of my set up.

Nice + rep to op

can i put this above my plant and the c02 will fall?

so how well dose this work and how many plants dose this work for? the other question i had was if it created a smell?

Thanks XxNinjaxX Great !!! thread i made 2 exactly how you showed mixed it up and started bubbling right away.

Going to give this a go. Thanks OP

If anyones looking for the release valve ebay's full of them;

http://m.ebay.com/sch/i.html?_nkw=Twin+Bubble+Air-Lock+release&isNewKw=1&isRefine=true&mfs=GOCLK&acimp=0&_trksid=undefined.TR0.TRC0.Xtwin+bubble+air-lock+release&sqp=twin+bubble+air-lock+release

A few things about this, I've just been doing a lot of research on this and there is some miss(ing) information. In the air outdoors, CO2 comprises about .038% of the total gas (380ppm). If you have a closet growspace with the door open and a fan running, this allows for gas to equalize so you will have ~380ppm. 380ppm is on the low end of the continuum of most plants ability to use it as fuel for photosynthesis (which stops completely at 200ppm), plants getting sufficient light grow much heavier and faster if supplied with 1500ppm (.15%, more than 4 times atmospheric levels). CO2 is only used in the presence of light and the amount of light available directly effects how much CO2 your plant can photosynthesize: at 4600fc a plant can use up to 600ppm CO2, if you increase the light to 5500fc it can use between 1200-1300ppm of CO2, if you go over 7500fc they can use up to 1500ppm.

To do calculations of how much CO2 will be generated:
1lb of CO2 (.45kg) = 8.7 cubic feet (.246 cubic m)
1cubic foot of gas increases the percentage of gas in a 1000 cubic foot room (10x10x10) by 1,000ppm
-during fermentation about half of the sugars weight is CO2, so if you want 1lb CO2, use 2lb sugar
-To determine how much weight you need, first figure out how much light you have and find the appropriate ppm CO2. Then find cubic area of growspace. Use these: 600ppm is 1:666(if you want 600ppm, multiply cubic area by .0006, so a 1000 cubic food room requires .6 cubic feet, or .0168 cubic meters or CO2) -- for 1000ppm it's 1:1000, so multiply area by .001 -- 1200 ppm is 1:1,000,000, multiply by .0012.

-When you make your hose, puncture it up and down the length of the hose (like for a drip irrigation system) and place it above your plants (CO2 sinks).
-if you want to use CO2 outdoors (which you should!!) a large compost pile in the middle of the garden works, or in a smaller garden putting a small compost pile under every plant. This is a super easy + effective way to enrich CO2 outdoors.

-CO2 generators are VERY effective under certain conditions and at least somewhat effective in nearly all conditions.

credit to spitinthacool