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CO2 & Ventilation

Discussion in 'Growing Marijuana Indoors' started by downsouthgrowin, Mar 26, 2012.

  1. When I run my co2 system, do I need to turn my vent off? How exactly does it work, as this is my first time with a co2 system?
     
  2. It works best if you can have your exhaust off when co2 is on. You can always put them on timers so they turn off when co2 comes on. However since co2 is much heavier than air the co2 has a tendency to go toward the bottom of your space. So the exhaust will probably not extract all your precious co2. Also to get the full effect from co2 you want to run a little higher temp. Like 82 is good.
     

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