How to make Co2??

i read in a post (which i cant find) >_< ... it said the method of using sugar and yeast to make Co2, but i just wanted to ask if anyone knew the exact proportions i should be using

Use 5 or 6 cups of sugar in a 1 gallon container, make sure the container has a fitted lid. Add half a gallon of water to the sugar along with a couple of tablespoons of active yeast. Poke a small, pencil-like hole in the lid and place it on top of the container.

thank you 8D

* 10lb. white sugar
* 5 gallon clean bucket W/lid
* 4 1/2 gallons of water
* A piece of toast browned and hard
* A table spoon of dry active yeast (for baking bread)

First boil the water, (this will ensure clean water) remove from the heat and add the sugar. Stir until sugar dissolves. Let cool until water is room temperature (if you don't let it cool down it won't work). After the sugar water has cooled, float the piece of toast on top of the water. Now, empty the tablespoon of yeast over the toast. After a few days, the yeast will take over the toast and start making bubbles (CO2) in the bucket. After a week, the amount of bubbling (CO2) will increase. Keep the lid airtight on the bucket. CO2 travels up the dispersion tubing, and due to it being heavier than air, falls directly onto your plants. Timing your exhaust, is essential in maintaining an effective level of CO2. Editors Note: Unfortunately the author of this contribution has not been able to test the CO2 levels produced using his method. Personally, I would use a CO2 analysis kit to help manage (exhaust timing etc), and maintain, an optimum level of around 1500PPM.

used that sugar yeast method doesnt do much

just have good air flow and turn the fans off for an hour a day when the lights are off

U Can But A Co2 Light Buld Thats Gives Off Plenty Of Co2 From Any Hardware Store

remember you can always just use a can of seltzer water and spray the leaves down. I use it in my resv to deal with the ph. when im out of supplies or when i feel the plants need for c02

Hey do you have a link for that co2 bulb.
I'm finding it hard to believe.