Compressed Co2 with passive intake?

S13hitman

Well-Known Member
I know this subject is already covered really well but my question is a little different.

The ideal way to use compressed co2 is without a passive air intake. However my setup is already passive air and I really am tapped out for more stuff.

Can anyone explain how I would use compressed co2 with a passive air intake?
I understand that I need a SEALED room and the exhaust needs to be off. So can I just run the co2 for 15 mins every hour or something? Or is it a complete waste since the plants only receive the co2 augmentation for 15 mins every hour and then that's it since the exhaust gets turned back on and sucks all the extra co2 out?

My setup is already done and can't poke more holes for another fan and duct... Next time!! Lol.
 
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