help with using co2

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mrweedster

Active Member
i just started to use co2 . i have all the settings right . here is my question i bought a timer to kick it on and off . when setting the timer example if i have it go on at 2:00 and it gives the room a burst should i have it shut right off or should i let it run for a minute then kick off . also how long should i keep my exhaust fan off before turning it back on . do the plants need 10 minutes 20 minutes or so to suck in the co2 . i have to turn exhaust back on room will get to hot .. any help would be great ....
 
M

mrweedster

Active Member
is anyone else using co2 in here i posted a few threads to ask question and no one seemd to respond . are people growing without it ?




mrweedster said:
i just started to use co2 . i have all the settings right . here is my question i bought a timer to kick it on and off . when setting the timer example if i have it go on at 2:00 and it gives the room a burst should i have it shut right off or should i let it run for a minute then kick off . also how long should i keep my exhaust fan off before turning it back on . do the plants need 10 minutes 20 minutes or so to suck in the co2 . i have to turn exhaust back on room will get to hot .. any help would be great ....
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M

mrweedster

Active Member
i have a chart here the room is 4 foot by 3 1/2 foot and 6 1/2 tall . what i wanted to know is when you give it a blast do i just blast the amount that the chart says and then shut it off or do i leave it on for a few seconds .

Rudiger said:
Depends on your room man. A 10x10 room is gonna take longer to fill up, as opposed to a 4x4 room. I'm not sure if you've seen the calculator or not, but it'll probly help if you aren't going to use a controller/sensor. 5 foot tall bushes are gonna use more co2 than 4 inch seedlings.

http://www.hydroponics.net/learn/co2_calculator.asp
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