2 tent sealed bedroom flipflop layout/design co2 ventilation help needed

Ok guys, been racking my brain trying to figure out the most efficient way to do this...

Im gonna upload a photo, and im gonna explain what im trying to
accomplish.

Ok, have an 11x13 bedroom with central air, have a 96x48 tent, and a 120x60 tent, also have an attached 4x5 closet that will eventually be used as a clone/veg/mom room depending on how efficient i can be. Id like to run a sealed setup with CO2, im planning on installing a 8x39" carbon filter in each tent, with AC Infinity 8" inline fans. 1 of these setups in each tent, then both connected together with a Y duct and blowing the carbon scrubbed air from the tents up into the attic. I also will be using a dual hose portable AC that i was planning on either using the window space, or sending it up into the attic as well. Im also not opposed to moving the AC into another area of the room. I think this will be the most efficient setup, but im not sure if the cool air in the "lung room" will be able to keep the tents cool as well as keep the co2 inside the tents without needing the carbon filters to cycle over actively often trying to cool tents down. I wanted to run a tank or burner of co2 and plump the lines into each tent. I planned on leaving the flaps at bottom of tent open, and if necessary, using smaller booster fans (green in pic) to blow cool air into the tents so that the ventilation will cycle less often. I know these things have a delicate balance of airflow, so just trying to do my homework first...

maybe I would be better off scubbing the are and recirculating it into the lung? any help is appreciated, gonna be running all led lights so they wont be adding alot of additional heat. and I was also planning to connect flower tent 1 to the veg/mom room with a hose and possible booster fan as well, this would effectively give me 3 growing areas within 1 room. I plan on flip flopping both tents, and using a fuzzylogic/titan co2 environmental controller to keep all areas in check, was thinking i would put the co2 sensor inside the larger tent but figured the small tent would end up close in comparison of levels.

Any questions about the picture just ask and i will clarify, add me on IG and have a nice night yall

Bump

Growvice said:

blowing the carbon scrubbed air from the tents up into the attic.

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Can be a very bad move unless the attic is heated and well ventilated. Did that in a garage up north here and had indoor rain in the spring. Was a f'n winter wonderland up there! Maybe if you live somewhere very warm and dry all year you could get away with it. Even then venting to outside is the best way to go. Ever heard of black mould? Dry rot?

If you are venting then it's not a sealed room and you'll waste so much CO2. Stick with air exchange to give them enough CO2.

You might be able to get it to work after a fashion and rigging good automation will make it a lot easier but it's a lot of balls in the air to juggle. Not saying it can't be done but it's looking iffy to me the way you have it presented.

Good luck with it tho!

OldMedUser said:

Can be a very bad move unless the attic is heated and well ventilated. Did that in a garage up north here and had indoor rain in the spring. Was a f'n winter wonderland up there! Maybe if you live somewhere very warm and dry all year you could get away with it. Even then venting to outside is the best way to go. Ever heard of black mould? Dry rot?

If you are venting then it's not a sealed room and you'll waste so much CO2. Stick with air exchange to give them enough CO2.

You might be able to get it to work after a fashion and rigging good automation will make it a lot easier but it's a lot of balls in the air to juggle. Not saying it can't be done but it's looking iffy to me the way you have it presented.

Good luck with it tho!

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Yeah venting warm humid air into a cold attic is asking for condensation on the wood and black mold growth. No bueno.

A lung room should be where you condition air for a recirculating setup. The only exhaust would be from your dual hose portable.

I am near the equator doesn’t snow here so heat and humidity are very common. I haven’t gotten set up yet but I was thinking of a way to connect to tents and only use one fan or carbon filter preferably but maybe two is still better?

If you have a reducing wye, say a 10x6x6 you could put a carbon filter in each tent then use the single 10 inch fan to pull on both tents.

I am not a fan of blowing through a carbon filter, rather suck air through them but you could use a single 10 inch filter on the output

I have a 10” and a 8” carbon filter, haven’t opened either of them because I’m still brainstorming originally I wanted to put a carbon filter in each room and connect them to their own fans but now I’m trying to think of ways to connect them together I Deleigh I think I would rather just use the single 10 inch fan and filter but I’ve been reading about possibly having some sort of Plenum or airbox made so that you can still suck with the carbon filter instead of blowing

Just remember, the first time you unpack your filter, take it outside, hook the fan up and run it for a few seconds. It will blow a bunch of carbon dust out, better outside than inside lol.

Growvice said:

I have a 10” and a 8” carbon filter, haven’t opened either of them because I’m still brainstorming originally I wanted to put a carbon filter in each room and connect them to their own fans but now I’m trying to think of ways to connect them together I Deleigh I think I would rather just use the single 10 inch fan and filter but I’ve been reading about possibly having some sort of Plenum or airbox made so that you can still suck with the carbon filter instead of blowing

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They make inline carbon filters too but they cost a lot more and you already have can style filters.

I'm thinking how to circulate air through all the grow spaces using the big fan and filter to keep the stink down in the room and use the smaller ones for the emergency exhaust and have that hooked up with a temp/rh controller.

If both the big tents could be left open it would be a lot easier but most likely you want each tent on it's own day/night so you stagger the heat load from the lights. One tent dark while one is lit kind of schedule.

Hmmm . . .

Renfro said:

Just remember, the first time you unpack your filter, take it outside, hook the fan up and run it for a few seconds. It will blow a bunch of carbon dust out, better outside than inside lol.

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If you connect a can filter correctly then you'll just blow any dust out with the exhaust air. Or do you blow rather than suck?

OldMedUser said:

If you connect a can filter correctly then you'll just blow any dust out with the exhaust air. Or do you blow rather than suck? View attachment 4512173

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But if using it as a scrubber of if he is blowing through it as he described...

Renfro said:

But if using it as a scrubber of if he is blowing through it as he described...

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As a scrubber you would still be sucking air thru it and blowing the air back into the room so you could attach the fan directly to the filter and suspend it up in the corner out of the way. Short and sweet.

Blowing into a can filter is not the way they are designed to work properly. Need a filter for the air going in or it plugs up fast even in relatively clean air. I got a dead one here my buddy destroyed after one grow. Would have to drill out the pop rivets and take the carbon out for cleaning and you know they'll never work as well again. I plan to use the shell to make a sift tumbler inside a rubermaid tub using a BBQ rotisserie motor for the drive. Need to find some screen for the inside. I got a shitload of sugar trim to deal with and it would take me days to process thru my little metallurgy screens by hand. Plus it's fun to DIY something that works and cost sweet fug all.