exhaust air at night in Sealed Room?

[shredGnar]

I believe they are here to stay though, particularly because of phenotypical expression, there is no other way to get 100% consistency from batch to batch.

This is my favorite thing about totally sealed.. less variables and more consistency. More like a lab, since parameters are totally replicable any time

 

[diseasedmind]

I understand that both ways work, I just wanted to know which one was better and why

after a lot of reading I am going fully sealed day and night no air exchange. It sees there are to many benefits to keeping it fully sealed vs only one I can think of to vent( which may or may not be helpful)

I did however order 2 automated dampers that I am going to install, incase I want to do an experiment down the road.

 

[TheyCallMeJJay]

And when you say smell it, do you mean you can smell cannabis outside of their room or you can smell stale air? If the latter I'd bet they don't have proper dehumidification leading to mildew problems, if the former, an ozone gen in the warehouse space outside the growrooms works wonders.

I can smell cannabis. No issues with humidity. The point is if you're not used to it you can smell it. Granted within and not outside in this particular case.

It's like people who own cats. They can't smell that they own cats, but people who don't can tell. We get used to smells

 

[TheyCallMeJJay]

I am still missing your point.. last time I checked my grow is not in a submarine..

It is difficult to read your subtleties and sarcasm through text, I can't see you buddy language or facial expressions. And I am dense..

Please just be blunt with me bro

Also, regarding smelling your grow buddies grows and not yours..

Couldn't it be you are used to the terepene profile of your grow from frequenting it, but not your bros?

My neighbors compliment my stank and I don't notice it, and then when I compliment theirs they cannot notice their own either..

lol. I'm just showing you how ridiculous red herring statements work in this case with submarines and locking yourself in a room. It's all good.

You get what I'm saying. We tend to forget who the audience is. You're growing in legal areas, whereas the majority are growing in illegal areas. For most, if a neighbor is complimenting stank, its with blue lights.

 

[moses wellfleet]

I understand that both ways work, I just wanted to know which one was better and why

after a lot of reading I am going fully sealed day and night no air exchange. It sees there are to many benefits to keeping it fully sealed vs only one I can think of to vent( which may or may not be helpful)

I did however order 2 automated dampers that I am going to install, incase I want to do an experiment down the road.

Good luck, let us know how it goes!!!

 

[EclipseFour20]

So Shred, Arch, & JD,

You guys did got me thinking about the fresh air during lights and CO2 dilution issue (but I'm still in the "air exchange when lights are off" camp). It is winter here in So Cali (low last night was 48 degrees...its 56 as I am writing this) so while it is cool, I will do a couple of experiments.

I will get a pack of CO2 test tubes (fresh ones this time--I think the last batch was "out of date"--hence the crazy number of 600 ppm for ambient air) and observe what happens when fresh air is no longer supplied while the lights are on.

Variables to measure: net change in temps, humidity & CO2. IMHO, the yield variable would be too subjective and not very meaningful--as I dialing in a new strain at this very moment, but this is not my first rodeo and so I can tell if there is any "disturbance in the force". One theory is the fresh air (500 ppm) displaces the grow chamber air (1200-1500 ppm) at the same volume, another theory is the fresh air CO2 is added and not proportionally removed (due to positive air pressure)...and vice a versa, it is removed due to the positive air pressure. Hard to say since CO2 is "heavier than air" and I have good air movement/flow.

Let's see what happens over the next few weeks/months (especially while it is still cool outside) and I will report back with my findings.

 

[shredGnar]

So Shred, Arch, & JD,

You guys did got me thinking about the fresh air during lights and CO2 dilution issue (but I'm still in the "air exchange when lights are off" camp). It is winter here in So Cali (low last night was 48 degrees...its 56 as I am writing this) so while it is cool, I will do a couple of experiments.

I will get a pack of CO2 test tubes (fresh ones this time--I think the last batch was "out of date"--hence the crazy number of 600 ppm for ambient air) and observe what happens when fresh air is no longer supplied while the lights are on.

Variables to measure: net change in temps, humidity & CO2. IMHO, the yield variable would be too subjective and not very meaningful--as I dialing in a new strain at this very moment, but this is not my first rodeo and so I can tell if there is any "disturbance in the force". One theory is the fresh air (500 ppm) displaces the grow chamber air (1200-1500 ppm) at the same volume, another theory is the fresh air CO2 is added and not proportionally removed (due to positive air pressure)...and vice a versa, it is removed due to the positive air pressure. Hard to say since CO2 is "heavier than air" and I have good air movement/flow.

Let's see what happens over the next few weeks/months (especially while it is still cool outside) and I will report back with my findings.

Sounds cool bro!

 

[moses wellfleet]

There was some talk in this thread re exchanging air at night to save power etc... Well it is discussed here in this thread by DJM. It is an all round very interesting read.

https://www.icmag.com/ic/showthread.php?p=6779537#post6779537

 

[theother]

I have consistently done better, both yield and quality when I vent my sealed rooms at night. It's definitely anecdotal, and it isn't a perfect experiment, but it is absolutely my experience.