Adding CO2 added 4oz to my normal 12oz. harvest. So right now I harvest a pound every three weeks.

I run a 3 week perpetual harvest. Want to read how to do it?
Harvest a pound every three weeks!

Or you can wait for the article in the May issue of High Times....

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Harvest a Pound Every Three Weeks

I have 20KG bottle

I put my bottle on the scale and see how much g or kg have release to the air. How can i calculate how much do i need for Grow room area: 700 cubic feet (in grams or pounds ...)

Grow room area: 700 cubic feet
Amount of CO2 required: 0.84 cubic feet <- How much is this in grams ?

yeah, alohaZ..........

All right i solve this problem:

Grow room area: 700 cubic feet
Amount of CO2 required: 0.84 cubic feet = 23.7861 L = 47g(15°C)


1,847Kg (co2) (15°C) = 0,9344m³ (934.4L)
1,977Kg (co2) (0°C) = 1m³ (1000L)

I make homemade wine and was gonna put my wine in same room as plants any idea how to calculate the C02 from 5 gals wine over time it would need to be replaced about every two weeks as it slows down alot after about a week or so . Im kinda getto and a cheapskate so its ye old killing two birds with one stone trick works for me

Just curious how most people get their c02??? Is anyone renting c02 tanks from welding supply stores? Any problems doing this??

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has anybody ever tried enriching the roots with oxygen, the way we use co2 for the air?

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how the hell is this illegal?

Its called Hydrogen Peroxide....H202...Its water with an extra oxygen molecule. You can buy it at any hydro shop.

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This thread is very helpful but I have a question.
Why put so much effort and money into this?

I think it would be cheaper to get the $180 indoor air meter and dial in a custom made Co2 maker.

Simply take a bucket of water with baking soda in it and attach a distilled vinegar bottle like a hospital IV would use.

I think I could make a generator for roughly $20 or less. The vinegar and backing soda cost is negligible because at the end of the day it's cheaper than a tank, regulator, timer, and refills. So for $200 you make a generator for CO2 and have a meter that will allow you to fine tune your drip rate.

Sure it's more work you'd have to do, replace the water and vinegar every 2 to 3 days, but compared to the cost of buying CO2 from someone I'd rather take the 3 - 5 minutes of work. Not to mention eventually someone is going to wonder why the your buying 60 - 80 lbs of CO2 every 3 - 4 weeks.

RetiredToker76

at what ppm is co2 deadly to humans its it ok to sleep in the same room with co2 running on a timer?