Different Co2 systems and their pros & cons

[Silky Shagsalot]

hummm, i don't know that, that. i'll have to think about that one, lol. admittedly, i've never used co2 (hope to soon,) all i've ever read says fans off while co2 cycle is on. you have your tube hanging above the plants so the co2 will fall down on the plants. what's the point of that if you have fans blowing it all over the room? even a co2 controller has a timer to shut fans off while co2 is released... the only fan staying on would be the fan exhausting the sealed hood out of the room, from out of somewhere else. but i'll have to think about that, that, lol...

 

[tea tree]

I stick my co2 tube in the back of a fan and point it at the celing. So it hits the ceiling and falls onto the plants. I measured it out at 2000 or so ppm with a syringe kit.

 

[Professor Puff.n.Tuff]

Nice. I used the sugar and yeast method for a while, at one point I had 3 two liter bottles going, it produced about 1800 ppm's per the syringe test.

Typically I put the bottles behind the fan, is is angled up a the lights to keep air moving there but def above the plants so it will have a chance to fall.

I stick my co2 tube in the back of a fan and point it at the celing. So it hits the ceiling and falls onto the plants. I measured it out at 2000 or so ppm with a syringe kit.

 

[That 5hit]

hummm, i don't know that, that. i'll have to think about that one, lol. admittedly, i've never used co2 (hope to soon,) all i've ever read says fans off while co2 cycle is on. you have your tube hanging above the plants so the co2 will fall down on the plants. what's the point of that if you have fans blowing it all over the room? even a co2 controller has a timer to shut fans off while co2 is released... the only fan staying on would be the fan exhausting the sealed hood out of the room, from out of somewhere else. but i'll have to think about that, that, lol...

they mean exhaust fan

 

[Professor Puff.n.Tuff]

Thanks for the clarification.

I might need to pull air into my lights form another source, right now I exhaust my room through my lights to cool them simultaneously. Then it all goes through a 150 carbon filter. Gots some thinkin to do.

they mean exhaust fan

 

[That 5hit]

that will be a big problem for co2 inrichment

what you will have to do is reconstruct your room
because you can't not pull the heat off the lights

what i would do is some how disconnect the ducting from the carbon filter and connect it to a hole in the wall thats the same height as the lights. now the fan will be pulling air from outside the room threw the light right back out side the room
seperating the air the lights was pulling from, from the grow
now in the actural grow area you will have to hook up the carbon filter to a seperate fan to pull the weed smelly air out the room up to the attic or where ever your sending it. now you can make it that the fan is not scrubbing the air while you are inriching the air with co2 , but still allowing the air to be pulled threw the lights to keep them nice and cool, because they are sucking there air for outside of the grow room, into the light, then outside the other side of the lights, then outside the otherside of the growroom keeping the grow room completly sealed
it gonna smell so good when you open that door the sealed room also locks in smells

did you read this

 

[tea tree]

I use a cool tube with a complete circuit for itself. I use an 8 inch valuline for my 600 watt hps. Then I have a smaller 150 or 200 cfm fan that pulls out and push thru a carbon filter I have just sitting on the ground. I run the exhaust all night and every two hours during day. If I dont pwder mildew hits right the hell away. I have also serenaded my plants with Seranade, a benficial bacteria that is healthy up unitl harvest that eats powder mildew. Powder mildew and high humidty are a huge prob if you dont exhuast right. I am almost thinking of getting a 50 pint dehumidfier for fun. Then i would be cool not exhausting during lights on. Get a 50 pint the companies say for humid areas like a growroom. It gets wet in there, lol. I do hydro too tho.

 

[That 5hit]

yeah i was going to say you need to have a dehumidfier
in a sealed grow room