The new box will be 6' wide and 7' high, it will have 3 chambers, 1 for growing, 1 for a mom and 1 to start clones. To help achieve that one pound I plan to add co2 for the main grow chamber during flowering, whatever it takes.
I'm hoping some of you co2 users can help me out. Here's my plan, let me know if its a good one and what I should re-think.
The box will be completely sealed and the light reflector will be cooled without affecting the air flow in the box. The intake will come from the mother chamber and the air will blow throw the light and exhaust out the box. Having it that way I'm assuming my temps will be around the 85 degrees, thats without exhausting the box. I read that higher temp is what you want when applying co2 so that should work out nicely if true. I'll have another exhaust for the main chamber attached to a carbon scrubber which will run a couple times a day, possibly being triggered when humidity gets too high. I think I'll be getting a controller for the co2 to monitor the levels.
Here's a few questions.
When you start flowering do you use co2 for the full 12 hours of light, as in keeping a 1500 ppm during the whole period?
I'm thinking you don't need fresh air in the box when co2 is being used as in no intake period? Of course it would be there during veg.
What equipment is good for co2 as in regulator and controller, any brands to look for?
How much co2 is normally used for 2 plants during a grow? Just looking for ballpark figures.
Thanks for any advice you can pass along.
Here's how it will basically be setup.