Bad RH problems running coco

I'll try and make this as short as possible.

I'm running 26 650w LEDs. Have three 3 ton AC units running in the room which is perfectly keeping up with the room at 85° canopy temp in the middle of the room. Have 1 hurricane fan per light, and floor fans I've put at each end of each set of racks blowing under the canopy. The airflow is there.

My 420 pints of quest dehu power was struggling at 77% humidity during the day and 85% at night so I bought five 296 pint dehumidifiers to strategically place throughout the room.

I added three of them the first day and it brought my day time rh to 67% and night down to about 55%. I decided to place the other two in the room and can't get the day rh to go any lower. They are set to continuously run but nothing is helping the rh during the day.

I'm aware that rh isn't as bad during lights on as it is off.

Im in week 8 of flower and I've seen some bud rot.

My only option right now is to run temps higher with CO2 supplementation and subsequently drop rh levels and curbing the bud rot at the expense of possible delayed trichome production.

Any of y'all have ideas to help this? I'm cutting about 20-28 possible dried buds off a day due to bud rot.

I would continue to cut what has bud rot.
You may want to start over... at a minimum be more aggressive about what has bud rot and remove it before you risk more than what is infected. It can spread throughout the plant and to others.
Also, post harvest its important to be extra thorough on resetting/cleaning.

I wish you the best of luck and hope you have something worth harvesting after all your work/efforts.

Be careful, spores may be spread from plant-to-plant through moisture and air currents of the wind.
Any time humidity levels rise or decrease rapidly, spores are released.

@Ez_deezy

CaliRootz88 said:

I would continue to cut what has bud rot.
You may want to start over... at a minimum be more aggressive about what has bud rot and remove it before you risk more than what is infected. It can spread throughout the plant and to others.
Also, post harvest its important to be extra thorough on resetting/cleaning.

I wish you the best of luck and hope you have something worth harvesting for all your efforts.

Be careful, spores may be spread from plant-to-plant through moisture and air currents of the wind.
Any time humidity levels rise or decrease rapidly, spores are released.

@Ez_deezy

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Yeah I'm taking off everything I see. I think I'll be better the next run, I'm just trying everything I can to stop it anymore, hence buying the mega big boy dehumidifiers. I'm up to 2000 pints a day and during lights on it's been impossible to bring it lower than 64%. I'm running coco so I understand the moisture is pulled out more but it's rough

Maybe consider less plants or more defoliating next run in order to have better control on humidity. Sounds like a learning experience for sure.

CaliRootz88 said:

Maybe consider less plants or more defoliating next run in order to have better control on humidity. Sounds like a learning experience for sure.

Click to expand...

I will admit,I could have defoliated more at week 3. Obviously less plant material less humidity, but it's still pretty wild. I went heavy end of week 7(yesterday) but it still hasn't solved the issue. I'll update the thread as the last week of flower goes by for sure

How many gallons of water do you feed a day? That times 8 pints per gallon and that how much you need to dehumidify. 2000 pints is 250 gallons.