Sealed or unsealed room?

[grow nerd]

I've heard of raising the CO2 levels to 10k PPM for an hour to kill pests.

I've also heard a lot of random BS over the years, too, so....

 

[Kindman69]

Me and a friend both tried, my friend even emptied a whole 20# tank over a 12 hour period, didn't even face the little fuckers (spider mites). Maybe some are more resistant then others, I was really hoping it would work considering all I have read about it

 

[grow nerd]

You mention emptying a 20# tank. But is the room well-sealed and able to maintain CO2 levels at >= 5k or 10k PPM for that period?

 

[FoCo(No.Co)]

Me and a friend both tried, my friend even emptied a whole 20# tank over a 12 hour period, didn't even face the little fuckers (spider mites). Maybe some are more resistant then others, I was really hoping it would work considering all I have read about it

Were you working with a completely sealed environment?

Did you use a monitor to make sure you were at 5000+ ppm?

 

[Kindman69]

Were you working with a completely sealed environment?

Did you use a monitor to make sure you were at 5000+ ppm?

Yep, I was and my bud was too. My counter maxes out at 5000, I kept it above for hours, my bud an entire tank for 12 hours. If it worked for someone here let me know what I did wrong....

Peace, Kind

 

[Kindman69]

You mention emptying a 20# tank. But is the room well-sealed and able to maintain CO2 levels at >= 5k or 10k PPM for that period?

Yeah, very well sealed. For some reason I think those little fuckers can hold their breath or something, maybe slow down their respiration and wait it out...
Like I said, I wish someone can tell me where we went wrong cause it would be a easy fix to many problems

Peace, Kind

 

[grow nerd]

I've only heard of it being used.

So you say it didn't kill the adults?

 

[Kindman69]

I've only heard of it being used.

So you say it didn't kill the adults?

It may have pissed them off, sorry to say

 

[organizedcrime]

Wow, the only pro for unsealed is less smell? Well, I guess I'll have to trot out my usual contrary 'pinion. What is this pipedream about a controlled environment? Is it a huge ego, or a lack of understanding of the staggering amount of variables in a natural system, or both, that lets humans believe that an environment can even be understood, much less controlled? It's good to remember that, at the outset, all things appear simpler than they do after a few years study. It's that attraction to simple, cut and dried ideas that lures beginners into broken concepts like total environmental control. Why not accept that control is not possible, and go the other way?

Treating spider mites is a great example of what I'm talking about. Mites are really only a problem indoors or in greenhouses, outdoors they're way too tasty a meal to get going much. Indoors, we go to great lengths to sterilize against the borg only to have it come back. A far better method is to place indoor plants outside long enough for them to collect local predators, which you then 'invite' indoors when you move the plants back. Local predator mites will be happier on your plants than ones you buy, plus they're much cheaper.

Another example is the addition of garden soil to your potting mix to increase microbial activity as opposed to using a 'sterile' blend. Sure, you can go out and buy those things in a bottle, but are you sure they're really 'all in there'? I wouldn't be. Only by inviting the outside in can we get close to nature.

haha theres always someone that has to chime in and say intake and exhaust is better than sealed

good luck matching co2 yields with your intake exhaust room man

 

[FinestKind]

It may have pissed them off, sorry to say

Lol bummer... I wonder how it works on fungus gnats and thrips? (My current two problems). Not so good, I wouldn't think, since the gnats are only a manifestation of the real problem (the larvae) and I doubt thrips breath all that much. Oh well.

It seems to me whatever "quick and easy" solution I use for bugs (eg Pyrethrin foggers) never seems to be all it's cracked up to be. Seems the only way to beat them is with hard work and tlc.

FK

 

[Hammerhead]

Like many others I use a tent witch is a sealed room. Get a dr 150 and your set.

 

[shuswap]

i also have tried in a sealed room with spider mites to bring the ppm up to above 10000 and i did this with a monitor which maxes out at 9999,i kept it there for 1 hour then let it come down,i did this 4 times 4days apart and it didnt slow them down at all,floramite did them fuckers in real good!

 

[Mr. Greengenes]

"good luck matching co2 yields with your intake exhaust room man" Well, I won't be needing any luck, since I have no need for either an intake exhaust or CO2 system. One of the many advantages to having 41 year experience under your belt!

 

[Mr. Greengenes]

Lazyman, yes I do think that unsealed is better. More specifically, I think that complete control, or even complete understanding, of an environment is a beginners pipedream. That's why I used the word son. If you read my post, I explained that local predator mites can be coaxed indoors, at least if you're not running a sealed room. In case you haven't tried everything on SM's, predators are the only thing that actually works in the long run. Who would imagine that man made chemicals could compete with a natural system? Only beginners. Give up those fantasies of total control, it makes things much easier. And, it makes real solutions, like local predator mites, a much more likely possibility.

 

[Lazyman]

I've been growing commercially for 6 years Mr GG, and have done several sealed rooms and a couple air cooled rooms. It's not a pipe dream, complete control is 100% feasible, but it is not cheap or easy. An environment with 1500PPM CO2 makes plants grow faster, finish earlier, and yield better than atmospheric levels. If you want me to post a dozen research studies to prove my point I will, but it should not even be necessary as it's not a debatable point.

If you're too cheap or lazy to put in a big AC and dehueys that's fine, but don't tell people it's not worth it, because it unequivocally is.

 

[Mr. Greengenes]

Not debating with someone who has 35 more years under their belt is always a good idea. You can post all the proof you want. Your point (that absolute control of a natural system is possible) is the more commonly supported one anyway so you'll have an easy time of it. My point is that you'll see it my way sooner or later, it's just a matter of time.

 

[johnnyla]

I've been growing commercially for 6 years commercially Mr GG, and have done several sealed rooms and a couple air cooled rooms. It's not a pipe dream, complete control is 100% feasible, but it is not cheap or easy. An environment with 1500PPM CO2 makes plants grow faster, finish earlier, and yield better than atmospheric levels. If you want me to post a dozen research studies to prove my point I will, but it should not even be necessary as it's not a debatable point.

If you're too cheap or lazy to put in a big AC and dehueys that's fine, but don't tell people it's not worth it, because it unequivocally is.

for real bro. just added 2nd dehumidifier and was on the fence about exhausting. so glad i went sealed. now i can get my humiditiy down to 40% no prob.

 

[Lazyman]

Not debating with someone who has 35 more years under their belt is always a good idea. You can post all the proof you want. Your point (that absolute control of a natural system is possible) is the more commonly supported one anyway so you'll have an easy time of it. My point is that you'll see it my way sooner or later, it's just a matter of time.

See that's the thing, growing indoors is NOT a natural environment. If your grow room is susceptible to temp fluctuations because of what is happening outside, your room is not stable, nor will your crops be.

Some regions have an easy time air cooling as the outside world doesn't differ much. Many parts of the country have subzero winters and 100*+ summers. Sealed rooms are the great equalizer, because none of them matter.

If you feel you don't have anything to learn from someone who is younger than you, you might as well turn off your computer. I also doubt you've been growing indoors for 35 years on any kind of scale, but feel free to post your vast knowledge on something you haven't done before.

Since facts don't have any impact on your decisions, I'm done arguing with you.

 

[FinestKind]

Lazyman, yes I do think that unsealed is better. More specifically, I think that complete control, or even complete understanding, of an environment is a beginners pipedream. That's why I used the word son. If you read my post, I explained that local predator mites can be coaxed indoors, at least if you're not running a sealed room. In case you haven't tried everything on SM's, predators are the only thing that actually works in the long run. Who would imagine that man made chemicals could compete with a natural system? Only beginners. Give up those fantasies of total control, it makes things much easier. And, it makes real solutions, like local predator mites, a much more likely possibility.

In my experience (granted, not 42 years), putting plants outside at all= pests brought inside. That's how I've ended up with thrips, fungus gnats, and aphids. Maybe it depends on where you live, but I would NEVER put a mother plant (or any other!) outside again and then bring it back inside- seems like suicide to me.

FK

 

[grow nerd]

Not debating with someone who has 35 more years under their belt is always a good idea.

No, it's not. Making the decision to unconditionally accept & not question the so-called (outdated & obsolete) "wisdom" of someone who claims N years of experience is the most foolish of all. I think it's deserves a mention that folks who seem to need to hide behind the empty "years of experience" protection / excuse generally also seem to be ones that don't have too much to show.

Maybe it's true that old dogs can't learn new tricks...

You can post all the proof you want. Your point (that absolute control of a natural system is possible) is the more commonly supported one anyway so you'll have an easy time of it. My point is that you'll see it my way sooner or later, it's just a matter of time.

I think you do not have a point. I also think that your cornered and limited experience in one field disqualifies you to be the decision maker on what type of system is "better".

If you knew how old I was, or how many years I've been growing, and what kind of numbers I'm throwing up... you'll probably just hate.

One of the many advantages to having 41 year experience under your belt!

It's a shame that, after 41 years, you're still lost and in denial while the new kids on the block are running circles around you.

How about.... first time grower friend, sealed room, given a week-by-week, simple-to-follow recipe, about 2 weeks experience prior, and nails it out of the park first try @ ~14.5# from 6kw... with 3.5# being from a lower-yielding, non-commercial strain from 2kw of 6kw; about 11# from 4kw. >16# was easily possible if mono-cropped. Let me guess, you don't believe me.