Question on pushing air through carbon filter outside of tent

redi jedi

redi jedi

Well-Known Member
NugHeuser said:
So do you guys all agree that 8" is plenty to give an 8'x4'x78" tent complete odor control? If the problem is the filter than I will go from there. But if it simply isn't enough, providing degradation of air flow from dust filter, 90 degree elbow, 3 feet of duct and carbon filter than I need to up to 10". Where do you feel is my problem?
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An 8" fan should be more than enough for your tent.
 
NugHeuser

NugHeuser

Well-Known Member
Well tomorrow morning I will try shaking the c.f. and knocking it around a bit. And that will show me basically instantly if my tent walls suck in more, they are just barely sucked in and flutter in and out.
I'm guessing it's the carbon filter then
 
redi jedi

redi jedi

Well-Known Member
Rakin said:
You do realize activated carbon is used in water right? Water doesn’t ruin it or nutralize it. The high humidity thing has nothing to do with water hurting the carbon. It just means that smell is harder to filter out with high humidity

and to reactivate carbon it takes more heat the a diy could do
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Water will plug the filter preventing air from moving through the carbon. Once dry, no problem. Carbon filters used in water purification have water pressure pushing the water through it.
 
Rakin

Rakin

Well-Known Member
MichiganMedGrower said:
You are wetting and using up some carbon life. In this case used carbon life.
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And where is your proof to back this up? The amount of carbon in these filters can filter many thousand gallons of water. Like in the hundreds of thousands of gallons. Rinsing the dirt out of the pores of the carbon is not degrading it. It is exposing new surface area that is covered with dust.
 
Rakin

Rakin

Well-Known Member
redi jedi said:
Water will plug the filter preventing air from moving through the carbon. Once dry, no problem. Carbon filters used in water purification have water pressure pushing the water through it.
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Dude did you not see where I said to dry it completely?
 
Rakin

Rakin

Well-Known Member
redi jedi said:
I did...but how do you know the filter is dry all the way through the carbon bed?
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I always set it out in the sun for a couple of days. Then knock it around a bit to see if any moisture is in there. Then if I think it’s dry hook a fan to it and you will find out real quick if it was dry. And that has been with can filters to. Or put them near a dehumidifier for a couple of days or put in an oven if it is small enough to fit.
 
MichiganMedGrower

MichiganMedGrower

Well-Known Member
Rakin said:
And where is your proof to back this up? The amount of carbon in these filters can filter many thousand gallons of water. Like in the hundreds of thousands of gallons. Rinsing the dirt out of the pores of the carbon is not degrading it. It is exposing new surface area that is covered with dust.
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I have no proof. But I will defer to manufacturer instructions. I don’t cut corners when it comes to my Grow. And in my experience any cut corners tend to result in problems. Problems seem to cost more than diy ideas to save money.

Also I recomend no one takes their filter outside to dry and then back in to a growroom. Anything could crawl or fly in there.

A new filter is an oz donation to me.

But do what works for you. I am not arguing that point.
 
NugHeuser

NugHeuser

Well-Known Member
MichiganMedGrower said:
It’s the Australian carbon. Other brands use it too.
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I found that my 6" filter is shot too(vivosun), maybe 3 to 4 months use and when hooked up to the fan to check air flow, the flow is almost non existent. This was after sitting a few months, it seemed to work before hand but definitely not now. I suppose it wouldn't hurt to try giving it a good shaking and see if that changes things.


I appreciate everyone's input, I'm taking in all opinions.
 
Rakin

Rakin

Well-Known Member
MichiganMedGrower said:
I have no proof. But I will defer to manufacturer instructions. I don’t cut corners when it comes to my Grow. And in my experience any cut corners tend to result in problems. Problems seem to cost more than diy ideas to save money.

Also I recomend no one takes their filter outside to dry and then back in to a growroom. Anything could crawl or fly in there.

A new filter is an oz donation to me.

But do what works for you. I am not arguing that point.
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I get not taking it outside but the manufacturers arnt usually going to tell you what you can do to get more life out of a disposable product as that would cut into revenue. I would replace one before end of life with new then clean dry and bag it for future use or donate to someone that needed it and still get plenty of service out of it.

I just don’t like chucking things that still have use
 
redi jedi

redi jedi

Well-Known Member
MichiganMedGrower said:
It’s mined there. That’s where the deposit is.


But still. Lol. That was funny!
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Really?...they mine trees in Australia?
In Canada we burn wood to make charcoal then pulverize it and wash it in acid to activate it...but hey us canuckle heads got our own way of doing things.
 
MichiganMedGrower

MichiganMedGrower

Well-Known Member
NugHeuser said:
I found that my 6" filter is shot too(vivosun), maybe 3 to 4 months use and when hooked up to the fan to check air flow, the flow is almost non existent. This was after sitting a few months, it seemed to work before hand but definitely not now. I suppose it wouldn't hurt to try giving it a good shaking and see if that changes things.


I appreciate everyone's input, I'm taking in all opinions.
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It is important to always use a prefilter. I have no experience with Vivosun. So I can’t really comment further.

High humidity is their enemy though. That could clog them up.
 
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