homemade co2 generator

thowedoff1994

thowedoff1994

Active Member
hi guys...ive made an homemade co2 generator with a 2 liter sprite bottle as the generator...and a 1 liter bottle as the separator tank....and silicone tubes to release the gas into my grow room ... im using 8 cups of vinegar and 2 tabelspoons of baking soda wrapped in tissue as the co2 charges ...ok i know this works but my question is ..does anyone know how long this method would release co2 into my grow room... hours, days weeks??also i have an 8X8 grow room so do i need more co2 or is this ok??
 
if it aint bubbling it aint releasing much co2. from my experience with this method it dont last but a day or so. i just had a 2 liter a quarter full of vinegar and add a spoon of baking soda every day. i think water, sugar, and baking yeast works better. or get a exhale co2 bag online for like 30 bucks. lasts 6+ months.
 
Just burn natural gas or propane - way less screwing around and way, way more co2. TBH, I doubt your method really does anything but make a mess and sink.

Heres how you do it with natural gas: http://www.youtube.com/watch?v=edfcso0Bqns&feature=plcp (you can also buy a gas co2 generator for around 3 times as much, for natural gas and propane)

Don't use natural gas without a thermocouple controlled switch, because if your fire were to go out, the room would fill with gas.
 
ok thanx ......i just think the yeast would smell after a while...since i dont have to pay for the vinegar and soda ill try it with more vinegar and more soda for a while....i just wonder does co2 really increase yeild to the point where you can notice it???cause so far im getting 2-3 ounces dry per plant in 7 gallon pots using cfls without co2 growing sleestackxskunk and fruit spirit
 
I'll make it easier for you to. UNLESS you use a monitor to control the ppms at a set amount the whole time the lights are on. It is pointless to try and supplement c02.
 
chuck estevez said:
I'll make it easier for you to. UNLESS you use a monitor to control the ppms at a set amount the whole time the lights are on. It is pointless to try and supplement c02.
Click to expand...

jus when i thought i had a plan!!!lol!! why do you say its pointless to sub co2? and could i get this monitor at home depot...i already tried walmart they dont have a co2 monitor only carbon monoxide monitors
 
it is a waste and pointless. there is no way to control it and adding co2 is about consistancy. plants really will not benefit unless it is at a consistant level
 
thowedoff1994 said:
whats the safest and cheapest co2 route to take
Click to expand...

You buy a tank, regulator and a cap controller (about $450), seal your room, gets your temps at around 83.
Otherwise it isn't really beneficial.

The best way to increase your yield is to dial in your environment and nutes.
 
A five gallon carboy with yeast fermenting in it will do an 4x4x8 closet.

To determine how much sugar we need for six weeks of operation or until fermentation ceases, the following calculations are necessary: From the above paragraph, we need 0.66 cu. ft. of CO2 every four hours. If one pound of CO2 makes 8.7 cu. ft. of CO2, we will need 0.08 lbs. of sugar, but because every one pound of sugar only makes 1/2 lb. of CO2, we must double the amount of sugar needed, i.e. 0.08 X 2 = 0.16 lbs. of sugar every four hours. Since there are six four-hour periods in a 24 hour day, the amount of sugar we need is 0.16 x 6 or 0.96 lbs. of sugar per day.
If we round this off to one pound of sugar per day, we will need 42 lbs. of sugar in six weeks. We must consider that only 80 to 90% of the sugar will be completely converted in this length of time, therefore, we should actually use about 48 lbs. of sugar in six weeks.
The sugar solution to start with is 2 1/2 to 3 lbs. per gallon. You can use hot water to start with, as sugar dissolves faster in it than in cold water. You must let it cool to 80-90 degrees F before adding yeast to it or the yeast will be killed. Start with the fermenting container only half-full as you will be adding an extra gallon per week for 6 weeks. Begin with eight gallons per week and 24 lbs. of sugar.
To start the solution fermenting, you will want to make a "starter batch" of sugar water, yeast and yeast nutrient. To do this, use a coke or beer bottle (approx. one pint), dissolve 1/4 lb. of sugar in 10 oz. of warm water (approx. 3/4 full), add a pinch of yeast and two pinches of yeast nutrient to this sugar mixture. Place a balloon on the bottle and set in warm location, 80 to 90 degrees F, for one to two days or until the balloon expands and small bubbles are visible in the solution.

I used this method for many years and it worked well but it is very inconvenient and wroks best in small spaces. I recently bought a tank and regulator system the diference is huge. I didn't know some of my strains could yeild so much...

 
for around $400+ you can get a minigen generator and a ppm4 controller. much easier to run a gen than a bottle, and much cheaper in long run. it cost me less than $7 a month.
 
thanx guys...b4 i move to a tank just wanted to try the yeast first...i was also thinking bout trying dry ice tommorrow since its only 0.50 per pound ...but what ni do no is i dont like the vinegar and the soda method...its too messy...but besides that i have 2 questions do mollasses really work and since im growing purple cheese will it turn purple on its on or do i have to drop my temps in the 50's??
 
listen to old timer, i thought about the dry ice crap years ago. dont waste your money. save it to do it right. remember it is so much easier and less conspicuous to exchange a propane tank, even drug stores have them outside.
 
superstoner1 said:
listen to old timer, i thought about the dry ice crap years ago. dont waste your money. save it to do it right. remember it is so much easier and less conspicuous to exchange a propane tank, even drug stores have them outside.
Click to expand...

ill leave the dry ice alone then...do you have any tips for purple strains
 
I will have to disagree on the above recommendation. By far not the best, and not even the lowest price for other comparable models. With environmental controls you want control, not a non-adjustable controller. And 1500 may not always be the best, I keep at 1400, but you want to be able to adjust your environment.
 
yeah with a groqw room that size youll have to do it with either a propane bottle and generator or the welding tank. if it was a really stealthy grow of two or three plants in a smaller area like a small grow tent or small stealth pc case then the fermenting process is the way to go. but you need the big guns.
 
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