I need help .(

Im frustrated because my grow room temp during the day is 86°F and 40 -60% humidity. At night the temps lower to 60 -70 °F bit im getting 70% humidity. Ive tried linking my veg yent and flowering temp, to lower temps in the flowering room & slightly raise temps in thd other and was lucky enough to have temp drop to what it currently is. I even opened up all flaps of grow room to let out moisture and heat. I have a 120 cfm 4 inch inline fan which I keep on 24/7 along with the regular fan I keep on high speed 24/7. Air slightly blows the plants so they don't get aggitated. They look healthy otherwise... Any suggestions. I really could use the help...

Blessings....

are you using that inline fan as an exhaust or intake? Having a strong active exhaust constantly running will keep your temperatures and humidity at a more nominal range. However, if your in a humid area a dehumidifier is your best bet unless you can somehow channel less humid air from somewhere else into your box.

WHAT SIZE IS YOUR ROOM?? are you exausting your light ? maybe try a 6 inch fan, get more air transfer exchange and the humidity wont get so high
in my 8x8 room i have 1k light on a 6 ft mover use about 6x6 of the space i have a 6" vortex exausting my hood variable to juggle temps(high in the day low in the night) and a 4'" 300 cfm on 24/7 to bring in fresh... focus on more air exchange

I run my house AC even in the fall to keep ambient temps low enough for the exhaust and intake to make a difference. that 86 must be driving you and the plants nuts.

i would suggest another inline, i would upgrade and put the larger fan on the exhaust. and the smaller on the intake. C.A.P. makes inlines that are way more powerful, and for a far better price than active air.

unless you have the money for a portable AC unit. they are costly but it would solve both humidity and heat issues

SFguy said:

WHAT SIZE IS YOUR ROOM?? are you exausting your light ?

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The grow space is 2x2x4 with 1k watt hps light. How do you exaust the light? Connecting ( I forgot what its called) tubing to the light through the roof of the room? I had to flush the gals two days ago so theyre still vry
mosit at the bottom about room temperature.. Thats probally what the high himidity is about at night??

also do you think that if i were to close the flaps of the room It would be ok? and maybe if i put some water absorbers in the room that absorb moisture it might decrease my humidity?