Need a CO2 Tutorial

ZoBudd

ZoBudd

Well-Known Member
I've searched around a good bit, found a number of calculators, but haven't found a tutorial on using CO2. I got a tank and regulator along with a bunch of other equipment in a pretty sweet Craigslist deal from a guy who was sellingh is entire, small scale setup. Now, I need to learn all I can on how to set things up in my 6' x 6' x 2' grow closet.

Suggestions please!!!!

Thanks!!!

Zo
 
justugh

justugh

Well-Known Member
ZoBudd said:
I've searched around a good bit, found a number of calculators, but haven't found a tutorial on using CO2. I got a tank and regulator along with a bunch of other equipment in a pretty sweet Craigslist deal from a guy who was sellingh is entire, small scale setup. Now, I need to learn all I can on how to set things up in my 6' x 6' x 2' grow closet.

Suggestions please!!!!

Thanks!!!

Zo
Click to expand...
co2 is easy

but like the person said u need to have it as air tight as u can ...........tent work

but u also need a Co2 controller fuzzy logic ...........u set the regualtor the controller allows it to run when it hits the correct ppm it shuts it off when it needs too opens up gets to lvl again shuts down so u are not wasting co2

it is a heavier gas so it sinks and settles so applying it u have 2 methods
1 the halo most effective .......the upper part of the tent below the venting point u run tubing and at the points is is over the plants u have holes and the Co2 flows out over the plant

2 u have a powered intake more common ........this u add the hose into the powered intake ducting and it supplies the Co2 into that so comes out with the cool air (if u do it right u have a fan inside that is blowing the cool Co2 enriched air into the tent making a varible current

Co2 runs cold so u might want to invest in a brand new regualtor so u know all the seals and everything is 100% if they have a crack or anything it tends to freeze up on u (freeze the valve open or shut not a good thing)
 
ZoBudd

ZoBudd

Well-Known Member
legalllyflying, your article was very helpful. Thanks again. But I still need help.

I am still trying to figure out how to set up the Aquatek regulator & solenoid that I have (see below). Note: I got a bunch of equipment from a guy on craigslist who was getting rid of his grow operation. This Included the regulator/solenoid and a tank that I've had refilled

My room is 6' x 2' x 6' (72 sq ft)
Sealed room
I do NOT have a ppm monitor.
Lights: 400w HPS 12/12
Exhaust Fan: 4" Inline, 165 CFM attached to light reflector 24/7
Intake: 1 4" duct fan & 1 low powered computer fan 24/7
Temp 85 - 90 F with lights on, 80 - 85 with lights offf
Circulation: oscillating fan 24/7
Plants in 4th week of flower




Perfect for calcium reactor and Freshwater Plant CO2 injection applications. Calcium Reactors and CO2 fertilization require far more precision in their dosing. Our Deluxe CO2 Regulator with solenoid is the best we’ve seen. Unit comes with dual gauges each with dual reading of both psi & kg/cm. Left gauge meters tank capacity and right gauge meters flow. With its fine tuning capabilities and electronic regulation, this CO2 Regulator meets the highest industry quality standard.
Product Descriptions
  • Cool-touch, industrial solenoid design
  • Dual Gauges for higher accuracy
  • Brass constructions for long-lasting durability and dependability (Why is brass body superior?)
  • Heavy duty electronic cabling
  • Compatible with most high density tubing
  • Bubble Counters included
 
Last edited:
warble

warble

Well-Known Member
22 seconds every 10 minutes

@15scf/hr

Here are the calculations that you might try.
72 cubic feet with ambient 375ppm of CO2.
That is what is in the air normally. So you take your regulator and set it for maximum output, mine is
15scf/hr. Divide the volume of the room by your output.
72 cubic feet / 15 standard cubic feet per hour ~ 5 hours,
so in five hours that room should be saturated with C02. I took a class from Ed Rosenthal and he said
you want 5 times the amount that is ambient 375ppm.
When cannabis evolved the earth had 5 times the ambient c02 that we have now.
If you did everything right with the grow being in a sealed room then the 1 million ppm is not what you wanted.
You really want around 1200-1500 ppm.
Take that 5 hours and multiply by .0012 = .006 hours
multiply by 60 minutes and you get .36 minutes
which works out to more than a third of a minute or
22 seconds every 10 minutes (defrosting your regulator between c02 blasts.)
or when you vent out by opening the room or by venting through your environmental controls.
You really can't overdose the plants on C02, they'll take what they can use.
Do not run exhaust fans while dispersing c02, just keep the air inside and move it around with some fans
and vent it out before you replenish. Just remember that it is better to error on the side of too much c02 than too little.
Enjoy
 
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legallyflying

legallyflying

Well-Known Member
The "proper" way to do it is to suck it up and buy a ppm meter. There are sooooo many variables that determine co2 levels you will NEVER get it right and will end up wasting more money on co2 then if you just bought the controller.

The fuzzy logic controller from cap is MONEY as it learns your room and keeps the ppm around 20 ppm from target but they are expensive.

For my gas fires rooms I bought this controller...I don't like not knowing what the ppm is as there isn't a display but it works great.

https://www.1000bulbs.com/product/92804/GROW-APCECO.html?utm_source=SmartFeedGoogleBase&utm_medium=Shopping&utm_term=GROW-APCECO&utm_content=CO2+Controllers+and+Monitors&utm_campaign=SmartFeedGoogleBaseShopping&gclid=CPHQr_nEkMACFQSQaQodP3QAaw
 
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