Co2

[bono]

Ok so I'm thinking about the next upgrade to my grow room and I want to add co2. Here are my questions.

I have a 1000 watt HPS w/ an aircooled hood that right now I'm using as an exhaust I have (4) 2"passive intakes as well as (2) 6" homedepot inline fans that pull air from outside the closet. Right now my temps are in the mid 80s. I'm wondering how people setup their cabs to get the maximum performance out of their co2. What I'm thinking is to use one of the 6" inline fans that is currently an intake to pull air from outside the cab through the hood and then back out without the air exchanging. This will hopefully keep the hood somewhat cooled but I'm thinking that the temps in the closet will quickly rise to over 100 degrees without any air exchange so what should I do?

 

[sweetnug]

You should set up a system where the light is cooled and none of that air is in the room so you can enrich the air without shutting off the cooling fan. The best bet is an enviromental controller that shuts off exhaust fans when co2 is enabled.

 

[bono]

Thanks thats what I was thinking. I can use my vortex 6" to pull 72* air through the light at approx 450 cfm. I'll use the two 6" inline fans to change out the air when the lights are off. I wonder what the temps will be like. I'll make the change this december when my current grow is harvested. Will I need to exchange out the air at all when the lights are on?

 

[Vegs]

Adding CO2 has been on my mind and I recently seen some interesting stuff on using non-flavored carbonated water. I seen where one was using a spray bottle and non-flavored carbonated water and simply spraying his plants once or twice a day.

Has anyone used this method and is a viable cheap solution to add Co2?

When does one start introducing CO2? In the flowering stage only, or at a certain point in the flowering stage?

Many thanks in advance.

 

[PurpleSkunk]

if ur gonna itroduce co2 you would be ok with temps as high as 91 deegres,thats one plus you get from having co2 in the air,and u always want ventilation but if u got enuff co2 being pushed in the room its amzing what u can get away with.good luck PS

 

[bono]

I'm going to wait until I can pick up a climate controller. Thinking the Green Air CT-DH-3P. I'll run the intake fans and the exhaust fan to the right side and the co2 to the left. To circulate the co2 should I have a fan under my ebb and flow tubs to push the air up? Also do I really need a monitor in there to measure the co2 ppm? Another thing I'm thinking about is having a timer on the left side w/ the co2. My question is when the left side is de-activated won't the timer stop timing?

 

[Pot Belly]

What about introducing carbon dioxide during off lamp times when you're not trying to exhaust heat. I have not explored CO2 operation, but that would seem practical.

 

[sweetnug]

There are things (forget the technical name) on the under sides of the leaves and they are what take in the co2. They are only open and processing the co2 during light hours. Never have co2 on at night. You should also give them 30 minutes or so when the lights come on before you start co2

 

[PurpleSkunk]

There are things (forget the technical name) on the under sides of the leaves and they are what take in the co2. They are only open and processing the co2 during light hours. Never have co2 on at night. You should also give them 30 minutes or so when the lights come on before you start co2

dam straight light isa must if u want the co2 to work.