CO2 suppliment with carbon scrubber how does this work?

well like the title says i want to use a CO2 generator with a controller too keep the ppm at the right ppm but i use a carbon scrubber for smell now if i have to turn off the fan to keep the ppm up, then how do i keep the smell down?

Yeah that's something I'm gonna have to face also. I have a digigro coco co2 monitor controller and regulator. I have a carbon scrubber also. Have not hooked the co2 up yet cause I'm waiting on my atmospheric controller. I ordered the greenair ctdh3p controller. I'll have the co2 and the exhaust running thru that so when the max TEMP and RH are reached it'll kick in the exhaust and shut off the co2. Can't wait to get it. Should be here maybe Saturday prob Monday. Not sure how it's gonna be once they really start with their sweet smell. We shall see. Gonna have to think of something if it gets bad.

yes i thought of ona gel but i guess that is not suppose to be in the same room. has anyone ever used a recurulating scrubber with a air cooled hood? is this effective way to eliminate smell? i wouldn't think so but i'm no expert plz advise about recirulating scrubber systems thank you

coolguy1478 said:

yes i thought of ona gel but i guess that is not suppose to be in the same room. has anyone ever used a recurulating scrubber with a air cooled hood? is this effective way to eliminate smell? i wouldn't think so but i'm no expert plz advise about recirulating scrubber systems thank you

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That gen should produce enough to over come the exhaust fan. I have my scrubber with it's own fan outside of my grow area next to the exhaust fan and ONA in the same area also it takes both to overcome true dankness. What is your grow area?

well it is a 6'x4' room with a wall at 2' to make a closet. i flower in the 4'x4' area with a 600 watt hps i have my scrubber and oscillating fan in the 4'x2' area i veg in another room. i would only use co2 in the other room i flower in i was looking at a gen one with 5 gal propane tank my exhaust is like 300 cfm after all the bends and restrictions that is an educated guess though so don't hold me to it also my light is inline with the filter at the moment. will make another hole if need be to make a sealed environment but if i could still run my exhaust without the burner being a problem then that would be good. but wouldn't it take more propane per grow if you are constantly taking out the co2 and having the burner have to run. well any advice as how i can achieve this would be grateful as i wish to up my harvest weight with co2

I would not run an exhaust fan w/co2. why would you waste it? i believe the solution to be just recirculating the air in your flower room through a good carbon filter. at least i have read this on other threads. i am also going to be using a c02 gen. and this is the method i will try. unless i find a better way. gl
joe

I would not run an exhaust fan w/co2. why would you waste it? i believe the solution to be just recirculating the air in your flower room through a good carbon filter. at least i have read this on other threads. i am also going to be using a c02 gen. and this is the method i will try. unless i find a better way. gl
joe

I think I see what you have got running. I don't know how much co2 that gen will produce for a 5 gal propane tank. So many factors do deal with for such a small area. flame, added heat and you still refill bottles. All I can tell you about is how long my 20lb. tank can last. My cab is 3x2x6 I use a Hydrofarm regulator and a timer. I don't sweat the sealed thing because my grow area so small. I have a small single fan running at the top all the time. I had 4 running before the co2. My temps went up to mid 80s but the growth was a 40% increase. My timer is set to 15mins on 15 mins off pretty much when the lights are on. I ran tests to check my levels and around 3 mins after the tank cycles off my ppms still at 1500. I get 6 weeks out of a tank.... Use this link to get an idea.....

http://www.hydrofarm.com/co2calc.php.

It will figure dispersion rates for your exhaust.....my flow rate around is .43, I figured my cab recirculates in 3 mins

Hope this helps bro

joe macclennan said:

I would not run an exhaust fan w/co2. why would you waste it? i believe the solution to be just recirculating the air in your flower room through a good carbon filter. at least i have read this on other threads. i am also going to be using a c02 gen. and this is the method i will try. unless i find a better way. gl
joe

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I dont give advice on things I dont know about JOE!!! Talk to me AFTER to run your co2....

well i wish someone who has tried recirulating scrubbing would stop by and chime in on the situation. i can do it this way just have to make another 6" hole so my light is sealed from the grow room but that is not a big deal to me the smell on the other hand is a big deal and having it exhaust i know the air is not being pushed out threw cracks and such from people to smell. i do not have a lot of negative pressure but enough for the smell not to leak out if you know what I mean.

so no one has tried a recirculating system seems like someone on here would have tried

I am sealed an have run a carbon scrubber inside the room just recirculating. I had a HUGH odor problem on my last go round. Even an ozone gen inside the sealed box couldn't overcome the odor so it's hard for me to say how well it did or didn't work.

However, if you are venting and exhausting your room through a scruuber, then allowing the odor to build up inside your space should only be a problem if it seeps out. Once the fan kicks back on, it goes through the scrubber on it's way out anyway. I would try it and see what happens.

Running 2 watercooled lamps in a closed space only gives me about 2 or 3 minutes before the airconditioning or in the case of venting a fan would come on. Seems like trying to stay sealed is the way to go. Add a window airconditioner and seal it up!

Venting out all of your co2 every few minutes could get quite expensive.

yes a sealed room does seem the way to go but also having smell is not the best way to go either so i guess i am really undecided on this issue. there must be a way maybe a tent with a water cooled co2 generator will work for me and then just use a scrubber on all the time in the rest of the closest area wouldn't this keep smell down and CO2 in tent? well hope someone has some more info for us

so no one has ever does this then? the tent in the closet then vent the air in the closet. would this not make it so the least amount of co2 is wasted while, still scrubbing all the time.

OKOKOK i am in the same delima right now cuz my exhaust fan with the scrubber only turns on when heat builds up in the room, which is maybe 2 times in the 12 hour light cycle so im getting smelly

soooo today when i went to refill my co2 tank i asked the hydro store guy and he told me exactly what joe said re-circulating!!!!

"just hook up a fan directly on a carbon filter and sit it in the growroom, it wont affect your co2 ppm because nothing is leaving the room"

You could always have timers or a controller turn off your fans and do a CO2 soak for 15 minutes or so every couple of hours or so.

with recirulating though wouldn't smell get released by the air pushing around my area is not air tight because smell can seep out but it is close to air tight thats why i like the fan on all the time the air never gets a chance to escape through the walls and floor. i think the tent is a good idea does anyone object to the tent with water cooled co2 gen inside the closet and have the closet being scrubbed all the time. i think it would be best seems like it would to me but what to i know

Yes, That will work. Keep in mind carbon scrubbers wont work in high humidity and I believe it can cut their usefull life down quite a bit.

That was basically my setup at one time. a 4x8 box water cooled co2, 1 1k water cooled an ac and dehuey. Carbon scrubber inside running 24/7.

I still had odor when I opened the box though. I think my scrubber was f'd by high humidity so I cant tell for sure how well it worked. Currently, I do not run a scrubber in the box and don't notice a big difference but I am running a much lower odor strain.

I am currently testing a product called the ozone cannon which is a high output ozone generator. I run it 2 X a day and it seems to be killing all odor outside of the box.

Keep in mind part of the idea of going sealed is to keep the smell contained.

I would be carefull running a burner in a tent. I switched to a bottle because my water cooled burner put out too much co2 for the space. I've been tempted to check out the minigen but my bottle has been easy.

SimplyM1tch said:

OKOKOK i am in the same delima right now cuz my exhaust fan with the scrubber only turns on when heat builds up in the room, which is maybe 2 times in the 12 hour light cycle so im getting smelly

soooo today when i went to refill my co2 tank i asked the hydro store guy and he told me exactly what joe said re-circulating!!!!

"just hook up a fan directly on a carbon filter and sit it in the growroom, it wont affect your co2 ppm because nothing is leaving the room"

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Mr.Natural said:

I dont give advice on things I dont know about JOE!!! Talk to me AFTER to run your co2....

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what the hell? now im not allowed to relate information read elsewhere? what do you work for the propane company? anyone who says that venting a co2 supplemented room unnecessarily is seriously smokin some goooooooood shit ! oh and btw i have researched this quite extensively so shove off!

to correctly use co2, you need a controller that has control over "all" other environmental units in the grow room. what is supposed to happen is, the co2 (whatever method of adding it is utilized) is turned on, and all other units like exhaust fans/filters etc. are turned off. you don't want your carbon filter/exhaust fan etc. exhausting the added co2 out of the grow area at the same time it's being added. it's pretty much just common sense. these controllers are not cheap, but in the end, the payoff is worth it!