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High RH at night - perfect during lights on

  • Thread starter Thread starter FuqStik
  • Start date Start date Sep 16, 2020
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High RH at night - perfect during lights on

FuqStik Sep 16, 2020 22 Replies 3,500 Views
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FuqStik

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#1
What to do? RH is upwards of 70 in the tent with lights off - flowering week 1.

Lights on it sits around 48-50.

I have a mini dehumidifer in there, do I need to get a bigger one?
 
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Anthem

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#2
FuqStik said:
What to do? RH is upwards of 70 in the tent with lights off - flowering week 1.

Lights on it sits around 48-50.

I have a mini dehumidifer in there, do I need to get a bigger one?
Click to expand...
yes you need a larger dehumidifier.
 
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growsince79

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#3
Do you run the fans and exhaust at night.
 
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FuqStik

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#4
growsince79 said:
Do you run the fans and exhaust at night.
Click to expand...
Yes
 
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growsince79

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#5
FuqStik said:
Yes
Click to expand...
The dehumidifier can't really work with the exhaust going.
 
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FuqStik

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#6
growsince79 said:
The dehumidifier can't really work with the exhaust going.
Click to expand...
So should I turn the exhaust off and just let the dehumidifier do its thing? Keep intakes open
 
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FuqStik

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#7
Like get a timer for my exhaust as well
 
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growsince79

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#8
FuqStik said:
Like get a timer for my exhaust as well
Click to expand...
This is what I use. Just put tape over the indicator light.

120V 8-Way Power Strip w/ Timer

Time the power with this practical 120V 8 way power strip suitable for any outlet. Available on growace.com
growace.com
 
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FuqStik

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#9
growsince79 said:
This is what I use. Just put tape over the indicator light.

120V 8-Way Power Strip w/ Timer

Time the power with this practical 120V 8 way power strip suitable for any outlet. Available on growace.com
growace.com
Click to expand...
What about when the ladies start stinking? Because I'll need the carbon filter. Assuming I just need to go purchase a large dehumidifier instead
 
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B0ssD0ss

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#10
Following cause I have the same issue. I just bought a dehumidifier as well and planned on running mine at night.
 
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growsince79

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#11
FuqStik said:
What about when the ladies start stinking? Because I'll need the carbon filter. Assuming I just need to go purchase a large dehumidifier instead
Click to expand...
QUOTE="FuqStik, post: 2491957, member: 119159"]
What about when the ladies start stinking? Because I'll need the carbon filter. Assuming I just need to go purchase a large dehumidifier instead
[/QUOTE]
Does your exhaust go outside or stay in the room?
 
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FuqStik

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#12
growsince79 said:
QUOTE="FuqStik, post: 2491957, member: 119159"]
What about when the ladies start stinking? Because I'll need the carbon filter. Assuming I just need to go purchase a large dehumidifier instead
Click to expand...
Does your exhaust go outside or stay in the room?
[/QUOTE]
It goes down a floor into my closet area
 
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growsince79

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#13
FuqStik said:
Does your exhaust go outside or stay in the room?
Click to expand...
It goes down a floor into my closet area
[/QUOTE]
I'd be worried about mold down there.
 
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FuqStik

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#14
growsince79 said:
It goes down a floor into my closet area
Click to expand...
I'd be worried about mold down there.
[/QUOTE]
Is well ventilated and not enclosed
 
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GreatWhiteShart

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#15
what is the RH of your house man!!!!! Do you live in a jungle! Or cuba?
I'm jk
But really you just need to increase ventilation/exhaust. Dehumidifiers usually are just needed in basements bc they are dank and you cannot reduce humidity by ventilation.
I'm assuming you don't live in a bog and If your house humidity is 70% you would paint peeling and condensation on ceilings. just open more vent flaps and increase your exhaust fan speed and bring the tent to your houses RH.
 
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FuqStik

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#16
GreatWhiteShart said:
what is the RH of your house man!!!!! Do you live in a jungle! Or cuba?
I'm jk
But really you just need to increase ventilation/exhaust. Dehumidifiers usually are just needed in basements bc they are dank and you cannot reduce humidity by ventilation.
I'm assuming you don't live in a bog and If your house humidity is 70% you would paint peeling and condensation on ceilings. just open more vent flaps and increase your exhaust fan speed and bring the tent to your houses RH.
Click to expand...
The fan is on high ... it's a 4" and a 4" carbon filter... I have a 6" fan, could i get a reducer? or would that exceed the CFM for the 4" filter?


2 vents open with active intake right now...

RH in my house is 50ish
 
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GreatWhiteShart

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#17
6 inch fan should be on a 6 inch filter,

How big is the tent?

And can you feel the exhaust change when u zip it shut, if you can feel a change u need more ventilation. If you feel no change, get a higher cfm fan.
 
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FuqStik

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#18
GreatWhiteShart said:
6 inch fan should be on a 6 inch filter,

How big is the tent?

And can you feel the exhaust change when u zip it shut, if you can feel a change u need more ventilation. If you feel no change, get a higher cfm fan.
Click to expand...
4'x4'

4" fan is about 188 cfm
 
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FuqStik

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#19
And I feel no change when I close the tent

It's venting to my downstairs... so it's like 25 feet of ducting. does that make a difference?
 
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FuqStik

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#20
Carbon Filter I have - Length: 13" | Airflow Rating: 210 CFM
https://www.amazon.com/gp/product/B07GSKFBL8/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
 
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Thread info

Replies 22
Views 3,500
Started Sep 16, 2020
Latest post Sep 20, 2020
Starter FuqStik
Forum Hydroponics

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