I can't get my humidity down below 65 *help

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rumors1011

Member
Humidity has been around 65-85 way to high.

Room is 10x18
Temps run at 84 with Co2 Enrichment

4k Flower room, Coco with drip system, 24 plants. 6 Per tray.

I have a 21 pint dehumiditiifier running 24/7 and I can't seem to get it under 65.
Do I buy a bigger Dehumiditifier? Or is there something else I can do to keep my humidity in control before it causes mold problems.
 
RollMeOne420

RollMeOne420

Active Member
best way is too lower your fan speeds and let your lights do the work. That room will heat up and make it less humid. Otherwise get a dehumidifier.
 
dbkick

dbkick

Well-Known Member
iNFID3L said:
hot air means less moisture, afaik ?
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Hot air doesn't really mean less moisture or EVERYWHERE thats hot i t would be dry, thats just not the case, a lot o f things are to be taken into factor, I had a room over 100 F and it was humid enough water was dripping off shit.
 
dbkick

dbkick

Well-Known Member
one other thing on the portable AC , make sure its dual hose, if not you'll be pumping room air/odor/cos out thru the exhaust because it pulls some room air over the coils to cool them then exhausts. I had to add a booster on my exhaust its so long, the shorter the better but def dual hose.
 
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chasmtz

Active Member
I think if your humidity is that high then I suggest doing every little thing to help it out. If you keep resevoirs for nutes/water, put them outside of the room. Remove anything and everything that releases moisture. Also, circulation fans make a huge difference is dispersing moisture through the air. move more air. Make sure you clean up the run off after you water the plants and remove it from the room. You follow me? Tighten up. You might say that it is but I'm sure that if you try, you can find things adding to your issue. AC units are a good suggestion but it seems as if you have temps dialed in. If all else fails, a dehumidifier is designed to solve that issue. I'm just a brain stormer. I wish you luck.
 
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rumors1011

Member
I have a split unit AC, it has dry cycle options but it doesnt seem to bring the the humidity down. My 50 gallon tanks are in the room, but have tops on them. Holes are cut out just big enough to fit PVC for the pumps. My tables are on slanted tables and I make sure to dump all the water from the waste. I'm still dumb founded why the its so high in the room. I have 4 16 inch circulating fans in the room.
 
dbkick

dbkick

Well-Known Member
oh nice, split system.bring temps down and that should bring humidity down. I'm the opposite, my room runs at 16 percent humidty most of the time.
 
dbkick

dbkick

Well-Known Member
rumors1011 said:
@dbkick if I bring down temps then i'm just wasting co2.
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this is not true, just because your temps are down doesn't mean that supplementing co2 is a waste. When running co2 temps CAN be a lot higher than normal but I've read nothing stating supplementing co2 when you run normal temps is a waste of co2.
 
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rumors1011

Member
Everything I read says optimal growth with co2 enrichment is 85 degrees. I think I'm just gonna suck it up and shell out the 400 hundred for a bigger dehumidifer :(
 
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cruzer101

Well-Known Member
My guess is its the flood tables releasing moisture between watering's.

Have you tried just hanging dry towels in the room?
 
dbkick

dbkick

Well-Known Member
the optimal temperature for the plant’s growth increases by a few degrees (as much as 8ºF) when the air is enriched with CO2. So whats 70(optimal without co2) +8? 78f with co2.
 
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