co2 on regular timer!?!?

i'm sure someone will stop by with a link. there is a formula for it based on the size of your room. i did a quick search but couldn't find it. someone will show up soon with the info though. also, really not worth it to use co2 in veg imo. plants can't process those higher levels of co2 when they are still vegging. unless you are vegging monsters (3'+). good luck man.

well the best way to do this is 2 filters and 2 centrifugal fans(a third one for your light/s), one scrubs and he other exhaust( their are ways to set it up with one filter, but it wont be any cheaper than buying another filter)


one filter scrubs 24/7 the other exhausts right b4 you fill up with co2 (this will serve many purposes for the time being understand it brings your co2 ppm to around 300) i usually estimate about 3 hours or less of useful co2 time, these factors will depend, you can but the simple tester kit and run schedule nd test it at different times of the day to understand how long your co2 last on average, and remember his will change with plant number.

i exchange air every hour and a half to 2 and half hours, im a little wasteful with my co2 but thats because i want to ensure my ppms are in range for the longest period of time, and my room isnt he best sealed.
http://www.hydroponics.net/learn/co2_calculator.asp
heres a link for the co2 calculator should prove helpful,

even if i where to get a controller i would still exhaust out the room several times over the day, the benefits from fresh air outweigh the cons from a sealed room, IMEO

test kit, youll have to but the refill tube they aren't cheap at this website but they have them cheaper other places,
http://www.hydroponics.net/i/131054

Originally Posted by ScoobyDoobyDoo

i'm sure someone will stop by with a link. there is a formula for it based on the size of your room. i did a quick search but couldn't find it. someone will show up soon with the info though. also, really not worth it to use co2 in veg imo. plants can't process those higher levels of co2 when they are still vegging. unless you are vegging monsters (3'+). good luck man.

i use co2 on my veg tis true elevation to "higher" levels such as 1500 ppm will be useless, but being in this environment as plant would prove to enhance growth.

i use co2 in everything since it is all one area

awesome thanks for the help!!!!!

it will mainly be for my flowering plants cause thats where i have high heat issues (not to solve to to help with the issue a tiny bit) along with wanting the co2 for obvious reasons. it will leak into the veg area of course but oh well lol!!!!

yep the way i do it i dont use an AC and my dehu barely runs. GL! if you need any help figuring out schedules and what not once you get a rough idea let me know

awesome i appreciate it.... i def got to get temps down though my tent hit 107 yesterday so im having to leave everything open to keep it cool until i get a ac in there

how are you runnin your set up give me a descripption maybe i can help

adding co2 to cure a heat problem is just not it. fix the problem, dont try a bandaid, fix the room.