DIY: Home Made CO2 Guide

Here is a Tutorial for an easy CO2 setup.

Firstly u will need to get all the required items together..

You will need: - 2L Bottle.
- Release Valve (Twin Bubble Air-Lock) & Grommet. (Available anywhere 'Home-Brew' equipment is sold.)
- 1 Cup of Sugar.
- 1 Tablespoon of Yeast.
- & Some Glue.

Step 1 - Cut a hole in the lid for the Grommet & Release Valve.


Step 2 - Insert the Grommet.



Step 3 - Glue around the Grommet to help make it Air-Tight..

Step 4 - Insert the Release Valve.



Step 5 - Fill the 2L Bottle with 1L of Warm Water.



Step 6 - Add 1 Cup Of Sugar to the Water.



Step 7 - Add 1 Tablespoon of Yeast.

Step 8 - Fill the Release Valve with Warm Water.



Step 9 - Put the Lid on your Bottle & Give A Shake. (It's a good idea to have a second lid for the same bottle that has no holes in it, so you can use it whilst you shake the bottle, and then put the air-lock lid on, or else it can get messy.)




Step 10 - Time to Move your CO2 Dispenser to your Grow Room & Reap the Rewards



(Notice the Release Point of the CO2 is at least even with the Canopy.)

Things 2 Know About Adding Yeast & Sugar.

Too Much Yeast will cause the fermentation reaction to occur too quickly.

Too Much Sugar will break down the cells in the Yeast and not allow fermentation.

Both these things will affect negatively the release of the CO2.

You will know when you are out of CO2 in the Bottle because the Valve Release will stop bubbling.
You can add more sugar to the mixture when it stops bubbling, or simply empty it out & make up a new mixture.

Also it is a good idea to put the bottle of CO2 as level to your plants as you can get them as CO2 is heavier than Oxygen and will not benefit you or your plants if it is released at a lower level.

Enjoy

How often does this CO2 set up need to be changed roughly? Should I change it out daily? or does it need to be changed out more often?

Great Idea Ninja!! That piece is called a twin bubble air lock. It's used in releasing co2 from fermenting wine by home brewers. You can find them for around a $1 each at your local brew store, or at any brew supply online. +rep

ive tried making that style of CO2 generator but only had marginal results. kinda of a pain in the ass to keep going and the CO2 output isnt really worth the extra effort/expense. i really wish it worked better. such a great concept/idea. nice tutorial none the less!

Given the recipe for Co2 it should last roughly a week. But you will see if it stops bubbling sooner..
No1 is saying it beats the Gas canister method, but it is better than nothing if its all you can do.
Thanks Evil, i couldnt think of the name of it last night, but yes, i got it from the Brew shop.

sorry for the newb question but how much does a small co2 set up like this help? I'm only growing one plant and thought of doing the exact set up.

A small setup like this will help ur plant immensely. A plant benefits from about 1500ppm of CO2 in the atmosphere, but in normal air there is only 300ppm. So we need to add the additional 1200ppm. I cant say with an certainty wat this setup will add, but it will definitely be of benefit to you, and at under $10 Dollars to make, you cant really go wrong..

how long does this produce co2

A tablespoon of yeast is a close approximation of what is added to wine during fermentation. It does put off quite a lot of CO2. It's enough to bow the lid on a sealed 6 gal bucket for almost 2 weeks. Even through the bucket you can smell it 5-6 feet away. I think it would do really well for a closet grow. When it smells like raw dough/ bread you know its still putting out CO2. When the smell dissipates you should prob refill. 1.5-2 weeks from my experience as a vintner.

-Evil

would this be sufficient for a 5x5 ft growroom? or would i need more than one?

Stickyy
Great thread Ninjaa!!

would this be sufficient for a 5x5 ft growroom? or would i need more than one?

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This should be sufficient for you, or you could make two and alternate them a week apart, so you always have a Max level of CO2 pumping into the room. I use 2 in a grow tent that is 10feet long x 5feet wide x 7feet high..

Is creating too much co2 possible? I mean if you had about 5 of these going in a 4'x4' closet, would it kill the plants? Any adverse effects to the environment or anything?

XxNinjaxX said:

This should be sufficient for you, or you could make two and alternate them a week apart, so you always have a Max level of CO2 pumping into the room. I use 2 in a grow tent that is 10feet long x 5feet wide x 7feet high..

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ok thank you! there are co2 meters/readers or whatever there called for the room right?

Dahmer8afew said:

Is creating too much co2 possible? I mean if you had about 5 of these going in a 4'x4' closet, would it kill the plants? Any adverse effects to the environment or anything?

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Anyone????

ismokebomb said:

ok thank you! there are co2 meters/readers or whatever there called for the room right?

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Yeah, you can an item that will read the levels in the room, but i believe they are expensive units.. i don't know of any cheap 1's..