Advice needed, humidity/smell issues. best fix?

[FLAM4]

Hey, need a bit of advice on an issue im having.

I am just finishing my 2nd run on my new room/s and having some smell leaks.

2x 2k rooms side by side one hydro one soil,
They are both passive extracted into a lung room with 1 12' fan with the 2nd biggest carbon filter you can get.

About the time as flowering starts my humidity in the soil room seems to get quite high... haven't got a meter i use my senses lol

Lights are 11am to 11pm in this room. temp maxes about 28c
Im guessing the warmer hours of this rooms cycle could be a slight reason for the increased humidity compared to the room next to it on 11pm to 11am light cycle.

So i need to fix this humidity issue.
I have been running a dehumidifier at lights off in the soil room and has made a slight difference in humidity and slight on smell.

I dont want to run dehumidifier at lights on as i will get heat issues.

Im guessing my filter has got bad from the humidity so this is what i need to fix.

What would you do in this situation?

Im gonna get a 2nd dehumidifier to run in the hydro room so that the air in the lung room has at least drier air entering 24/7 rather than just 12h.

Also i will go buy the biggest filter you can get...

What else can you suggest for stopping this happening again...
This op runs super smooth until this smell factor has hit... need to get it back on track.

 

[FLAM4]

Other things i have pondered for the fix...
pre filters on the duct lines to the lung room.
ozone generator after the filter of the lung room.

But i think sorting the humidity would be my first step.

 

[FLAM4]

ozone generator IN the lung room?

 

[FLAM4]

Another idea was a 2nd filter the same size, both connected to my 12' fan so would make it 2x the surface area pulling though 1/2 the speed?

 

[Granger2]

You need to lower the RH. Carbon filters don't work well or at all with RH over 70%. I don't know if having twice as much wet carbon is going to help.

>About the time as flowering starts my humidity in the soil room seems to get quite
> high... haven't got a meter i use my senses lol

You kidding? RH meters are cheap, and you're guessing at it? You're talking about possibly spending hundreds and you don't really know what a $10 hygrometer can tell you?

I understand about extra heat from a dehum, but you gotta pay to play. What's the cost of getting your RH in hand compared to the loss you'll suffer from PM and Bud Rot? -granger

 

[FLAM4]

yea i have 3 meters on the way along with 5 mini ones for my storage containers.

"I understand about extra heat from a dehum, but you gotta pay to play".

Dont really understand this comment... are you saying just try run dehumidifier at lights on as well?

Money is no problem... just asking for best solutions to get this problem sorted.

 

[Granger2]

Yes. Set dehum/s at 50% or lower, and run them 24/7. If the RH isn't higher, they won't run. BTW, when you get your RH down, the carbon will dry out and work well again. Good luck. -granger

 

[corky1968]

Sounds like you have to add another air filter to help handle the odors.

Is there way you can get air from outside to enter your grow room directly?
Outdoor air is normally dryer than indoor air. Unless it rains of course. If so
you wouldn't have to worry about using a dehumidifier.

 

[FLAM4]

Yes. Set dehum/s at 50% or lower, and run them 24/7. If the RH isn't higher, they won't run. BTW, when you get your RH down, the carbon will dry out and work well again. Good luck. -granger

Cheers for that... have got a 2nd dehumidifier installed today and put it on constant but with a thermostat connected to cut out at 30c if it gets too hot... will dial it back when filter drys out.

Sounds like you have to add another air filter to help handle the odors.

Is there way you can get air from outside to enter your grow room directly?
Outdoor air is normally dryer than indoor air. Unless it rains of course. If so
you wouldn't have to worry about using a dehumidifier.

Got another filter today... huge thing, biggest you can get.
Air is coming from outside... but at ground level.

 

[Granger2]

Flam4,
Are you saying that you are running dehums in a room that is not sealed, and you're running outside air thru your room all the time? If that is so, I don't see how you can expect to control RH no matter how many dehu's you're running. Or temps for that matter. Do you have an AC? This is just May. It's going to get hotter, and stay hotter. Your 28C now is about the max for healthy plants. Seems to me that you could buy and AC for less or about the same as a 2nd carbon filter the size you're talking about. How many cu.ft. do you have? Something like 512ish? Are your lamps air cooled?

Unless you're in a desert climate, outside air is generally not lower RH than inside air. If you run a sealed room with AC, dehum, carbon filtering the air, CO2, you'll solve your RH, temps, etc. with little effort. Good luck. -granger

 

[OG Tree Grower]

sounds like you need better ventilation for heat and humidity,

You never gave much info but assuming your 2 k room is no bigger than 8x8x8 your 12" fan should be good. I'm guessing your passive intakes and or - bends in your exhaust-longs push ect has your fan seriously under rated. You need an active intake or an intake hole 5 times the size of your 12" exhaust

Another note I will add is that carbon filters still work well at 70 rh. I run there all the time and change out filters every 6 mts with no smell ever

Also don't use ozone in the lung room that shit is bad for u and plants. Those things need to be on exhaust lines and 20 feet away from you or the plants