Got my hands on a full 20 lb. CO2 tank, gauges, and safety shut off.

Now What? I mean i know what CO2 does for the plants, but not sure how to add it into my room, and how much to use.

Any thoughts would be appreciated.

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I'm just giving a rough guess cause I'm just learning co2 too, but 1200-1500 ppm seems to be good.. I'll be adding co2 shortly

thanks messa, but do you know how long it should be on, and when? lights on or off? And for how long?
Thanks

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Buy a co2 regulator on ebay. $80-100.

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Currently i am hopelessly addicted to Ambien. I always seem to sleepwalk my ass to the computer and write crazy threads about random pics i find on google. I wont remember when i wake up so dont ask.

Someone will correct me but it doesn't need to be running when the lights are off. Run 1200 ppm when the lights are on threw the whole grow. That's what I'm gunna try anyways. Unless someone else has some better advice?

See above post.......got that already.
The question was how long to run it at each time, or how to set it to run automatically. If could afford 80 to 100 dollars, i would have just bought it when i started growing....obviously i'm a DIY kinda guy.

Thanks messsa, so you say only run it when lights are on?
My gauges only show P.S.I though. How do i know what the PPM's are.

Would it do any good to just turn it on for a few hours on a low PSI while i am there, or not?

My grow is not at home, so i tend to it when i need to. Cant be there to turn it on, then off when the lights go out.

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Can you set it up on the same timer as your lights so it turns on an off at the same time? If not then ya set it on low and run for a few hours I guess? Just sucks not knowing how much your letting off tho, cause you could kill them. I'd look into a co2 censor.. Measures ppm

You need the room at 1500 ppm. You also need to have a solenoid regulator for the tank. This attaches to the tank valve and then has a plug to a timer. You set the timer to turn on at certain times for a certain amount of time to get to your 1500 ppm. This is best controlled with a co2 controller or monitor but you can do a manual calculation based on the size of your room but will need the 1 minute cycle timer and the solenoid to open and close the valave. the solenoid can be found on ebay under co2 controller same as an automated controler same search something like co2 controller or co2 monitor. solenoid can be got used for around $50 or $150 new. a digital moinitor controler is luck around $250 use and upwards ofd $3000. Here is a link to a co2 calculator figure the room dimensions add them in and calculate. You use co2 with lights on times only mostly in flower and temps need to be between 80-85 F. Times on will be short usally as in my 4 x8 tents I have it run 4 minutes on every 2 hours roughly. You need a sealed grow room no air outtake except before a fresh fill i do an exchange of air using fans on times and duct dampers to close the vent holes right before a new co2 room fill
http://www.hydroponics.net/learn/co2_calculator.asp

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Fletch,
Thanks man and I love the new avatar. Tits is way better than your initials etched in pot!!LOL!!! Personal collection, or internet goddess?

Thanks for the link and the tips. I guess i'll look into the gauges on ebay, but cant really afford them at the moment.

Would it be okay for me to just close the vents off, not a problem, and open the valve on a low PSI for about an hour, then go in and switch it off?

If it will do anything at all, i'm willing to try it. Purely experimental of course.

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That a picture of the singer Cassie from BadBoy. her puter was hacked and I have her pictures that were yanked. You can try opening the tank manulally use the calculator to get an idea of how long in the room. You want to have the house from the tank above the plants as co2 is heavier then air and falls. You also want a fan on the floor preferably the tilt kind so it sucks the air and co2 from down low and blows it back up and over the plants

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