Dessicant for humidity in sealed room?

InigoMontoya

InigoMontoya

Well-Known Member
Hey everybody I'm having RH troubles once I close up my tent for nighttime. I don't have a good intake/exhaust system just slumming it with some well placed fans. My question is; would dessicant (sodium chloride) be a worthwhile choice for keeping my RH down during nighttime? It's a 2*4 tent if that helps. Thanks in advance my good people :peace:
 
SoCal Calyx

SoCal Calyx

Active Member
I've never tried that approach, but my experience tells me it wouldn't work well. Or if it did, wouldn't be very cost effective compared to investing in decent axial fan.
 
InigoMontoya

InigoMontoya

Well-Known Member
SoCal Calyx said:
I've never tried that approach, but my experience tells me it wouldn't work well. Or if it did, wouldn't be very cost effective compared to investing in decent axial fan.
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Yeah that's what I'm going to have to do, just wondered if I could Macgyver it into working. I can naturally humidify a room, why not the other way around? haha well I appreciate your input
 
S

Shugglet

Well-Known Member
SoCal Calyx said:
I've never tried that approach, but my experience tells me it wouldn't work well. Or if it did, wouldn't be very cost effective compared to investing in decent axial fan.
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Whats a fan going to do for a sealed room????

As for the question, yes it would work, how well it would work is a different story. Things like that work best in very high humidity levels and do very little once humidity drops below ~40 or so roughly.

You would need a fan to blow air over the desiccant and a drain to get the water out of the grow area.

If I were to recommend anything Id say get some calcium chloride for melting ice on driveways. Should be able to get a ~50lbs bag for like $20. Good luck.
 
Budzbuddha

Budzbuddha

Well-Known Member
A completely sealed tent will mold your plants - you need proper air exchange EVEN during lights out. You will stress them , medium will stay too wet , etc.

Seriously , would you sleep inside a large plastic bag ?

Even a passive duct ( at top hole ) about a few feet long ( to block light ) would be better than sealing it up ... You could run a fan as an inlet ... ( bottom duct ) and allow passive exhausting via just a ducting hose at top vent hole . It is about as cheap as you get.
 
InigoMontoya

InigoMontoya

Well-Known Member
Budzbuddha said:
A completely sealed tent will mold your plants - you need proper air exchange EVEN during lights out. You will stress them , medium will stay too wet , etc.

Seriously , would you sleep inside a large plastic bag ?

Even a passive duct ( at top hole ) about a few feet long ( to block light ) would be better than sealing it up ... You could run a fan as an inlet ... ( bottom duct ) and allow passive exhausting via just a ducting hose at top vent hole . It is about as cheap as you get.
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Yeah I ended up just getting some ducting and it got rid of the problem before it became a problem.
 
S

Shugglet

Well-Known Member
Budzbuddha said:
A completely sealed tent will mold your plants - you need proper air exchange EVEN during lights out. You will stress them , medium will stay too wet , etc
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Complete BS.

Budzbuddha said:
Seriously , would you sleep inside a large plastic bag ?
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What does this have to do with anything? Plants arent people. Using your logic, one might surmise you could survive, like plants do, by simply drinking their nutes, because after all whats good for one must be good for the other, right? Try it and get back to us.
 
dubekoms

dubekoms

Well-Known Member
Shugglet said:
Complete BS.



What does this have to do with anything? Plants arent people. Using your logic, one might surmise you could survive, like plants do, by simply drinking their nutes, because after all whats good for one must be good for the other, right? Try it and get back to us.
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Lol what? You don't want high humidity in flowering, you will get mold or mildew bro it's a fucken fact. High humidity also reduces transpiration, making the plants suck up less nutes, less growth, roots sit in wet medium longer.

Plants aren't people but they're living things...just like people. You want that tent well ventilated and mold free.
 
dubekoms

dubekoms

Well-Known Member
The Affects of Humidity on Plants. ... As plants transpire, the humidity around saturates leaves with water vapor. When relativehumidity levels are too high or there is a lack of air circulation, a plant cannot make water evaporate (part of the transpiration process) or draw nutrients from the soil.

Climate control for plant growth is an essential consideration in regards to pest and disease management. When conditions are too humid, it may promote the growth of mold and bacteria that cause plants to die and crops to fail, as well as conditions like root or crown rot. Humid conditions also invite the presence of pests, such as fungus gnats, whose larva feed on plant roots and thrive in moist soil.

https://www.polygongroup.com/en-US/blog/how-humidity-affects-the-growth-of-plants/
 
Budzbuddha

Budzbuddha

Well-Known Member
dubekoms said:
Lol what? You don't want high humidity in flowering, you will get mold or mildew bro it's a fucken fact. High humidity also reduces transpiration, making the plants suck up less nutes, less growth, roots sit in wet medium longer.

Plants aren't people but they're living things...just like people. You want that tent well ventilated and mold free.
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Sweat boxes are no Bueno .... I guess shug is growing plastic plants .
 
Budzbuddha

Budzbuddha

Well-Known Member
dubekoms said:
The Affects of Humidity on Plants. ... As plants transpire, the humidity around saturates leaves with water vapor. When relativehumidity levels are too high or there is a lack of air circulation, a plant cannot make water evaporate (part of the transpiration process) or draw nutrients from the soil.

Climate control for plant growth is an essential consideration in regards to pest and disease management. When conditions are too humid, it may promote the growth of mold and bacteria that cause plants to die and crops to fail, as well as conditions like root or crown rot. Humid conditions also invite the presence of pests, such as fungus gnats, whose larva feed on plant roots and thrive in moist soil.

https://www.polygongroup.com/en-US/blog/how-humidity-affects-the-growth-of-plants/
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Great explanation
 
Uncle Reefer

Uncle Reefer

Well-Known Member
dubekoms said:
The Affects of Humidity on Plants. ... As plants transpire, the humidity around saturates leaves with water vapor. When relativehumidity levels are too high or there is a lack of air circulation, a plant cannot make water evaporate (part of the transpiration process) or draw nutrients from the soil.

Climate control for plant growth is an essential consideration in regards to pest and disease management. When conditions are too humid, it may promote the growth of mold and bacteria that cause plants to die and crops to fail, as well as conditions like root or crown rot. Humid conditions also invite the presence of pests, such as fungus gnats, whose larva feed on plant roots and thrive in moist soil.

https://www.polygongroup.com/en-US/blog/how-humidity-affects-the-growth-of-plants/
Click to expand...
I would argue these plants love high humidity and at night they aren't transpiring anyway so High RH doesn't matter for this reason.
Why you want to control your RH is MOLD and risk of mold.
So ya you want to get on top of the humidity but mold reasons, not transpiration reasons.
Really just an academic point
 
dubekoms

dubekoms

Well-Known Member
Uncle Reefer said:
I would argue these plants love high humidity and at night they aren't transpiring anyway so High RH doesn't matter for this reason.
Why you want to control your RH is MOLD and risk of mold.
So ya you want to get on top of the humidity but mold reasons, not transpiration reasons.
Really just an academic point
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Plants don't transpire as much at night but they still need oxygen while they respire. Good airflow at all times day or night is needed to grow your plants to their maximum potential.
 
S

Shugglet

Well-Known Member
dubekoms said:
The Affects of Humidity on Plants. ... As plants transpire, the humidity around saturates leaves with water vapor. When relativehumidity levels are too high or there is a lack of air circulation, a plant cannot make water evaporate (part of the transpiration process) or draw nutrients from the soil.

Climate control for plant growth is an essential consideration in regards to pest and disease management. When conditions are too humid, it may promote the growth of mold and bacteria that cause plants to die and crops to fail, as well as conditions like root or crown rot. Humid conditions also invite the presence of pests, such as fungus gnats, whose larva feed on plant roots and thrive in moist soil.

https://www.polygongroup.com/en-US/blog/how-humidity-affects-the-growth-of-plants/
Click to expand...
Sorry, but the whole point of a desiccant is to lower humidity...
 
S

Shugglet

Well-Known Member
Budzbuddha said:
Sweat boxes are no Bueno .... I guess shug is growing plastic plants .
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So you have literally no clue what the OP was referring to in the original post at all? Obviously.

Desiccants lower humidity, if you lower the humidity in a "sweat box" is it a sweat box?

If you put a dehumidifier in a damp room sealed room, does the dehuey not do anything?

Stoners at their finest, spreading misinformation like champs.
 
vostok

vostok

Well-Known Member
InigoMontoya said:
Hey everybody I'm having RH troubles once I close up my tent for nighttime. I don't have a good intake/exhaust system just slumming it with some well placed fans. My question is; would dessicant (sodium chloride) be a worthwhile choice for keeping my RH down during nighttime? It's a 2*4 tent if that helps. Thanks in advance my good people :peace:
Click to expand...
The Obvious ...

avoid watering come close of day

water very little

install adequate venting system

after all what you gonna do come stinky time?

good luck
 
dubekoms

dubekoms

Well-Known Member
Shugglet said:
So you have literally no clue what the OP was referring to in the original post at all? Obviously.

Desiccants lower humidity, if you lower the humidity in a "sweat box" is it a sweat box?

If you put a dehumidifier in a damp room sealed room, does the dehuey not do anything?

Stoners at their finest, spreading misinformation like champs.
Click to expand...
He was talking about calcium chloride though not dehumidifiers you silly goose. It would be stupid to use it as a dehumidifier compared to proper airflow.
 
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