Need Co2 advice

[sum1cull911]

just now doing similar co2 newbie install....don't/can't have sealed room....
392 sq ft ......flower room open around top/poly enclose......exhaust 6" vortex @ top o room for heat/smell......tank +reg w/co2 rings above 2 1k hps....
am i spinnin my wheels tryin to get/keep co2 in there?......no meter yet/$
...but soon....ambient levels @ 500ppm/with test tube tester dealy....typical temps 75-85...flow rate @.4cu ft ?..30 min drop at 6a.m....15min drop every/hr till approx hr before bedtime......synched drop/exhaust...girls had an immidiate improved look overnight......but tips appreciated......smoke up

If you don't/can't have sealed room, then supplemental co2 is pointless. Normal air quality already has approximately 300-500 ppm. Depending if you live in a city or not. The point of supplemental co2 is to get the ppm up there around 1500. You might as well sit your tanks outside your front door and let em open. It's not necessary to supplement co2, just a kick in the plants but to get growing.

[copobo]

you nailed it. if you can't close the room and do CO2, move air like crazy instead. cheap and effective...

[denverbear]

thanks for all the help everyone...the only problem we are having now is with some of the plants are dropping leaves (2 big ones ) and leaves are kinda yellowish and drying out...we had gone by Delta 9 and he suggested using kelp and seeing if that helps..hopefully that is the answer..

[grobro]

thanks bruddahs for all the input about the unsealed room probably not gonna work..............wish i had thought of that before i $ that.....but hey.....the girls look fine most all the time but yields were goin down....thought i give the ol stoner try.....not givin up on it just yet tho......with a little more vaping and some farm enginuity i,m gonna get some co2 on those little girls(BK PK OG D JB BG 47/48 GA BLD BD CH MM GF)
...i,ll post some pre-co2 pixs next time.....
.....hey klonzinc you out there bro? ring me up in da 'gulch'.......my # same.....
...anybody heard/worked with/tried exhale co2 bags www.co2cultivator.com Home of ExHale "Grow your Own CO2" ???

.

[TurboALLWD]

CO2 is not called for in veg.

It's not called for in flower either. lmao It will make your plants veg like no other.

Plants like it hotter when there is CO2, and can tolerate and thrive in higher temps.

Some strains dont like it so hot. Not all of mine were happy at 85-88 so i'm at 82 now.

CO2 should be NOT be run the last 2-3 weeks as your buds will not swell.

Really? I run perpetual harvests most of the time so I wouldn't know. [attachment=o262556]:jointsmile:

Grobro- $100 used 9,000 btu floor unit modify it for a 6'' intake duct. That's the ticket, especially if you already have a co2 setup.

[TurboALLWD]

this post might be useful to you growers stuck on wasting your co2.

A quote from my journal...
I need to make changes in the co2 schedule again. Staying to hot in the grow room with the extra 1000 watts, so the co2 calculator says, co2 for 8 minutes @ 10cfh at 8:30am to get the room to 1500ppm of co2. Then 2 more minutes at 9:20am to get the levels in the room between 1500ppm and 1800ppm of co2 (guessing at how much co2 is lost/used in that 50 minutes). The exhaust/intake fans will kick on at 10:00am,and exhaust the room, and turn off at 10:29am to remove the unknown amount of co2 in the room. The co2 for 8 minutes again at 10:30am to 10:38, and repeat the above schedule every 2 hours. Temps are staying between 78-86 degrees.
Using this technique I keep the room warm enough for the co2 to be effective, and the room is flooded with 1500ppm of co2 75%-80% of the time.

Not only is it not cost effective imo, the temperature fluctuation from this technique is most likely counter productive. With the temp and co2 fluctuating that much I have a hard time believing they would gain anything over a nice ventilated grow. My plants in my ventilated flower room are doing just as good as the co2 flower room. lol

[MtnLionCO]

just get a co2 controller/indicator, it will help you dial in your ambient co2 level. if you grow in your house then you will find the correct conditions to keep it consistent without supplementation, i .e. keeping your window open 1 inch rather than 2 inches etc. once you do this you can keep the co2 constant at about 1200 parts per million. wonderful device.

[MtnLionCO]

you have to understand what is there before you can know how to act on it. once you get the co2 indicator you realize you dont need co2 supplementation.

[sum1cull911]

just get a co2 controller/indicator, it will help you dial in your ambient co2 level. if you grow in your house then you will find the correct conditions to keep it consistent without supplementation, i .e. keeping your window open 1 inch rather than 2 inches etc. once you do this you can keep the co2 constant at about 1200 parts per million. wonderful device.

Are you saying this with the understanding that you ARE supplementing co2 and using your window to control the ppm?

Or are you saying you just open your window, and you can control co2 within your home without using supplemental co2?

[MtnLionCO]

without supplementation.