humidity

gerbo

Active Member
hi there folks looking for advice on lowering my humidity i have 2 dehumidifiers in my growroom lights on 45% lights off 60 to 75% cant seem to get the level down when lights are off any suggestion thanks
 

mr.smileyface

Well-Known Member
is your room sealed? outtakes? you might be drawing to much fresh humid air in.
i have a 12 inch can max inline on a thermostat set for 27 and then i have a 4 inch on a humidistat set for 70%. Im getting a dehum because they give on heat and cold seasons are coming.
I also run a heat on a heating thermostat set for 20c.
65-75% is good for lights off. Aslong as your temps are over 18c and there is good airflow it doesnt matter. Make sure you burn sulfer because cool temps bring in the mildew.
My advice is get a humistat and set a small fan that will do less air exchanges per hour. a 4 inch in my room does an air exchange every 5 minutes and the 12inch every 50 seconds.
The inlines should be your last resort and set to a high level then your dehums. They are mostly for controlling heat and build ups of humidity.
 

gerbo

Active Member
no smiley growroom in attic ,fan on all the time air comes from eaves seem to empty de humidifiers every day iam growing white rhino it says 8 week flowering iam 7 weeks in and looks if it could go another 4 weeks is that to do with my high humidity at night iam growing in soil all mix wet and dry cycle
 
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