Advantages of a SEALED room...

[Iamnumber]

sketch for review, comments/pointers needed

sketch for review, comments/pointers needed

Hi,

I am a newbie from non-friendly legal environment.

I am looking to build a non-offensive (smell, sound, floods etc) setup.

I believe my best option is to opt for 'trees' over multiple small plants. I do hope I will be successful in re-veg/re-harvest cycles.. future will show..

So.. the core of my plan is to build two sealed rooms within each other. Inner tent is where the plants will live. Outer tent is for controlling smells.

inner and outer tent are moderately heavy plastic sheet. taped with a zip door (would double zip door be overkill?).

Lighting is not set on stone.. I will learn more as I go on.. heat heavy light are to be vented cool air that is re-directed to outer tent.

Do I need to leave air room between the floors of outer and inner tents? (risk of mold or bug or something else that air space would help to prevent/detect/make easier to take action)

Lightning.. I think I will put bigger light to centre, plants around, and smaller lights to corners etc.

Now I read somewhere that 18/12 day/night cycle would be 'better' for harvest with downside of lost calendar time on vegging. (would seem to work towards my goals).. can someone confirm this?

so.. to sealed room specifics..

My plan is to fire up ventilation when I am about to enter. This would create negative pressure to inner tent and to outer tent as there are bound to be tiny leaks. this should control the smells from escaping as I unzip the inner tent door.

(unzip outer tent, step in, zip outer tent, unzip inner tent door, step in, close inner door to the point where the underpressure is enough but not too much)

Temperature.. as said, venting heat from 'heavy' lamps to outer tent. plan to facilitate passive heat exchange between innertent<> outer tent and outer tent <> outside.
What would be optimal for setup with normal co2 levels and what would be optimal for setup with elevated co2 levels? And what should I aim for if I just know that they are elevated or highly elevated?


CO2.. I do plan to try DIY stuff first. This would result in high co2 dosage in inner tent during the day.

Moisture.. this one is bit tricky.. I think I will try out passive moisture control first and as a backup plan I would run ventilation during night hours (with AH filter).

growth medium: I am going to start with fytocell .. On paper it seems a good medium that can hold up a lot of water. Watering by hand. I hope the plants can survive fairly long time alone with this.
How much should I use nutriens with fytocell? I assume less than in standard water cluture? (on the other hand.. elevated co2 levels will need more nutriens..)

Now.. I think I will have to protect the fytocell from light to prevent unwanted growth in medium.. would covering the medium with say dark plastic sheet create a mold breeding ground? should I just put clay balls or something on top of fytocell?

Further options. second room so I can flip-flop lights >> more consistent power usage.
..
I think there will be times when I wish to put my plants to 'stasis/hibernation' status.. I mean.. minimal maintenance, max time between checking - but plants surviving and ready to continue active veg phase. What kind of environment would be good for this? Is this kind of 'stasis/hibernation' even realistic option? should I just keep it simple and start over?

Wow.. this was a loooong one, thank you for reading! I think I got a moderate grasp on basics. I hope to hear pointer if I have totally missed something worth considering and naturally answers to my many questions are appreciated!

With best regards, Iamnumber

 

[ChaosCatalunya]

Another point to consider for people who are worried about the power consumption of the a/c is that you can allow temps to rise as high as 29C, plants in an enriched environment need the higher temps to boost growth.

Better still at 32-34C with 80% RH, 1200ppm for the first half of flowering

There is a linear relationship between temps and RH for optimal growth, to maximise results you must keep it within that band

 

[moses wellfleet]

Better still at 32-34C with 80% RH, 1200ppm for the first half of flowering

There is a linear relationship between temps and RH for optimal growth, to maximise results you must keep it within that band


View Image

Really you have had good results with temps that high? Never tried it myself but I guess I should do a run like that to experiment!

 

[ChaosCatalunya]

Really you have had good results with temps that high? Never tried it myself but I guess I should do a run like that to experiment!

When I first learned to grow we went on a research week to Amsterdam and found Positronix, luckily we got to speak to one of the guys there and spoke at length about many things, Inc CO2... he was the one who really explained that additiong CO2 does little, that you needed to use it to raise the whole metabolism of the plant to really gain anything.

This means higher light intensity, higher temps, higher humidity and +\-1200 CO2ppm, then you can see the "doubling" of yields.

Obviously, almost all strains will not work well like this for the second half of Flowering, you need to turn it down, the plant is not really growing any more, she is finishing off what she built

 

[Twisted pleasur]

I just have to say... Ive lurked this thread from time to time over the years and I wanted to just add a few things because people are always chiming in with their two cents so why not mine. Im not addressing any one person or anything. Just some of my advice and general reading for all the newbies Im sure frequent this thread. While some of it or most of it may be common sense Im just board for the moment and also because Ive never ran anything in my whole career other then sealed.

I generally do not have a choice but to run my space and every week of flowering in these ranges. Because Im perpetual. With two rooms combined with the same HAVAC and circulation system. And lets just say Ive dealt with my share of problems probably more so then others due to my situation. Loose flowers, lack of frost, and yields which none of these things are executable and must be fixed. So with that being said I have to find a balance with everything I do And Honestly its all about finding what works best for you and your situation you have to be like mother nature AND not meaning in a general sense but as nature always finds a way to adapt and over come anything bad and carry on no matter what and there is no way to learn this in a text book. You have to read every plant and every situation and not only that but be one step ahead to actually do well.The text books and advice of others is only a guide a point of start. Just like that chart for Pressures the sweet spot they show you is a very wide range whenever one increment changes everything.

It has only been in the last year with over 25 years of experience that I can actually leave my set up for weeks on end without worry. And the right strains for your situation is pretty much 75% to 85% of the puzzle. And that is the truth. 100% If she dont work move on no matter what you will find "the one" and you will be more then happy. Ive got strains and clone onlys I dont even run they just sit and I dont run them in my systems because they do not perform the way I have things. But Ill run one on the side because I miss her. In a perfect world I will have different spaces doing different things to run them all. So for these reasons I keep them around for some day ahead.

Dealing with being mother nature is all about balance and the fact nature isn't perfect and you will never find perfect it will drive you into the crazy house trust me. But the main thing I would like to leave everyone with is you have to tinker to the point ware you are satisfied and except that.

So take this with a grain of salt and never get discouraged best of luck is all I can say cause you cant teach trial and error unless you have a time machine.

Thank You for reading.
T`P

 

[moses wellfleet]

Has anybody else had success with temps over 30C?

 

[ChaosCatalunya]

I just have to say... Ive lurked this thread from time to time over the years and I wanted to just add a few things because people are always chiming in with their two cents so why not mine. Im not addressing any one person or anything. Just some of my advice and general reading for all the newbies Im sure frequent this thread. While some of it or most of it may be common sense Im just board for the moment and also because Ive never ran anything in my whole career other then sealed.

I generally do not have a choice but to run my space and every week of flowering in these ranges. Because Im perpetual. With two rooms combined with the same HAVAC and circulation system. And lets just say Ive dealt with my share of problems probably more so then others due to my situation. Loose flowers, lack of frost, and yields which none of these things are executable and must be fixed. So with that being said I have to find a balance with everything I do And Honestly its all about finding what works best for you and your situation you have to be like mother nature AND not meaning in a general sense but as nature always finds a way to adapt and over come anything bad and carry on no matter what and there is no way to learn this in a text book. You have to read every plant and every situation and not only that but be one step ahead to actually do well.The text books and advice of others is only a guide a point of start. Just like that chart for Pressures the sweet spot they show you is a very wide range whenever one increment changes everything.

It has only been in the last year with over 25 years of experience that I can actually leave my set up for weeks on end without worry. And the right strains for your situation is pretty much 75% to 85% of the puzzle. And that is the truth. 100% If she dont work move on no matter what you will find "the one" and you will be more then happy. Ive got strains and clone onlys I dont even run they just sit and I dont run them in my systems because they do not perform the way I have things. But Ill run one on the side because I miss her. In a perfect world I will have different spaces doing different things to run them all. So for these reasons I keep them around for some day ahead.

Dealing with being mother nature is all about balance and the fact nature isn't perfect and you will never find perfect it will drive you into the crazy house trust me. But the main thing I would like to leave everyone with is you have to tinker to the point ware you are satisfied and except that.

So take this with a grain of salt and never get discouraged best of luck is all I can say cause you cant teach trial and error unless you have a time machine.

Thank You for reading.
T`P

I don't think that I am the only one who would be very interested in hearing about your adventures over the years TP ... Please chime in when you have a moment

 

[Mikell]

That makes two of us.

 

[Twisted pleasur]

what do you guys want to know?

 

[chomsky]

this would be very helpful in a sealed room and a lot cheaper...

http://boredomtherapy.com/diy-air-conditioner/?shr=true&as=6039235349084

 

[moses wellfleet]

Yep been there done that. I was getting ice from a fish factory, shoveling ice and smelling halibut soon got old!!!

May work well for a tent or closet though! Especially if you use dry ice which will provide CO2.

 

[Mikell]

what do you guys want to know?

What's your favourite colour?

Eh nothing specific, I just enjoyed reading your experience and would gladly read more.

 

[chomsky]

How sealed does a sealed room actually need to be? I want to start running Co2 however, my room is definitely not air tight.

 

[chomsky]

I was looking in to leds to save heat etc and my friend said dont do it. They moved the LEDs to the veg and mom rooms and i believe hes running gavitas or papillons now. He said they didnt produce the same yields and hes a 2nd or 3rd gen grower who knows his stuff.

That totally depends on the LED's Check these out, Im giving them a go. I hope they work as well as my research seems to say the do. My Spydr X Plus is on the way... I cant wait
https://www.fluence.science/spydr/

 

[Treetroit City]

How sealed does a sealed room actually need to be? I want to start running Co2 however, my room is definitely not air tight.

In general the tighter the better especially if using a controller. You will just go thru more gas be it bottled co2 or propane for a burner. If your room is not sealed well a timer might be a better option than a controller.

 

[chomsky]

In general the tighter the better especially if using a controller. You will just go thru more gas be it bottled co2 or propane for a burner. If your room is not sealed well a timer might be a better option than a controller.

Why would a timer be better?isnt it important to maintain around 1100ppm

 

[Treetroit City]

If you try to keep a certain ppm(controller)with a leaky room you will just blow thru your gas.

With a timer you just get the room to say 1000ppm and then let it drift down to 300 before you fill it up again. You will save gas going the second route.

 

[Twisted pleasur]

Blue

 

[chomsky]

If you try to keep a certain ppm(controller)with a leaky room you will just blow thru your gas.

With a timer you just get the room to say 1000ppm and then let it drift down to 300 before you fill it up again. You will save gas going the second route.

Thanks

 

[chomsky]

Is using co2 in a grow room bad for the environment?