Smell coverup for indoor tents

Incredible4Mr2E

Well-Known Member
I wanted to know if anyone has ever tried hooking up there inline fan to the carbon filter directly and outside the tent hooked it up to one of them indoor drying machine lint traps that uses water. Instead of water though there is this stuff you put in the toilet water before you shit and it smells very strong. It's called like poo perary and I think if you put that in the water as a second smell filter I bet it would kill the smell. Any input?
 

TurboTokes

Well-Known Member
ONA gel original. Buy a gallon for $30. or buy the small container for cheap if you just want to try it out, but the gallon makes it much cheaper for the ammont.

Put a few tablespoons into a saucer or something (I bought a glass ashtray at dollar store) and put it up on a shelf or behind the tv or such, and it completely removes odors from the entire house outside of the grow room. Few tablespoons of the gel cubes evaporates in a week.

Dont put it in the grow room though.
 

The_Enthusiast

Active Member
The carbon filter always is plenty of smell control
Did you ever get 100% (for human nose) weedless smell?

I tried few but never got perfect smell - maybe 80% less smell
Increased it with O3 generator in exhaust pipe to maybe 90% but still there is little smell (plus O3 smell)...
 

Incredible4Mr2E

Well-Known Member
So normally I would get a 6" fan system and be in a bigger room. I'm now growing tent city and wanted to know what 4" carbon filter is truly the best? I've read so many forums where this person say the ones better but has these cons and anther say the cons are there pros and it's just all different. I'm growing 1 and 1 only plant under a 400 watt sealed air hood sucks air from outside goes thru 2 filters thru the light only and out into the attic. That will be a high powered inline fan to move max air over the light. Since I'm growing in a Sercrete Jardin DR90 I'm going with a 4" carbon filter and always go with Montain Air put I'm having are hard time finding the montain air or even a nice phresh filters to match the CFM. Everything this I see the fan isn't rated to move what the carbon filter recommends. So is the filter is rated at 210 CFM and the inline fan only pushed 160 CFM I've looked online and power say it's bad and going to have an under rated fan for the filter. I'm stuck and need a filter but want a nice 4" inline fan. Also I've read a little, with a carbon filter on the inline fan does it cut proformance do but up to half? Mean if it's rated at 280CFM the filter makes it only move 140CFM?
 

Tim Fox

Well-Known Member
Did you ever get 100% (for human nose) weedless smell?

I tried few but never got perfect smell - maybe 80% less smell
Increased it with O3 generator in exhaust pipe to maybe 90% but still there is little smell (plus O3 smell)...
yes i did achieve 100 percent,, my wife insisted on it,,
BUT it was constant effort it seemed,, I had to tape up every joint, and seam
Oh get this,, i had to duct tape my entire flex hose,, when a light was shined down the hose,, you and if you looked down the flex hose from one end,, you CAN see light shining thru the hose in places,, little pin hole leaks,, seems the ducting is made this way ,,
what thse joints and pin holes do is allow smell to by pass the filter,,
Also we have to tape the carbon filter canister ends,, they dont seal over the charcoal perfect,, and some air sneaks past the carbon in the ends,, so i always had to tape each end of the filter up about an inch,, as the weeks went by you could tape up further and force the air to travel over a differant part of the carbon bed
I always kept 2 filters on hand,, one filter in the grow tent ,,, the other being serviced and ready to go back in
what many of us do is we empty our carbon filters out onto a cookie sheet and bake the carbon in the over,, this recharges the carbon, if its really bad a soap and water bath,, then an oven backe
so as soon as my nose started to detect a smell,,,, increase the tape up, once 50 percent of the filter was taped,, i would switch filters and service the second one again
 

Tim Fox

Well-Known Member
Use a mild biodegradable soap in RO or deionized water. Put in the carbon and swish it around for about 15 min. Drain and rinse, 3 times, soaking/swishing the carbon for 10 min the first 2 times.
Now dry it and bake it in an oven at 250 deg till dry.....The heat does the "recharge" as it dries out. The mild soap removes any accumulated oils that it may have absorbed (only in the surface pores [on the carbon] are where these oils get trapped).

This is how a major drug company does it's lab filter carbon.

P.S. You might try the oven recharge first as that has good effect if your whole filter fits and you don't feel you want to tackle removing the carbon....Be sure to take off the white "prefilter" first.
 

Tim Fox

Well-Known Member
ok one last thing,, I grow in a wooden wardrobe box, its as big as a tent,, but with solid sides and top,,,,, my carbon fitler was inside before the fan,, so the smell was filters out of the air,, pushed thru the fan and out in the bedroom,,,
well when the filter wasnt 100 percent,, i made a small wood tray, painted it white to match the box, stapled a screen over one side,, then bought carbon from ebay,, i would have a bag of the carbon handy,, and i placed the tray over the top of the exhuast exit hole,, so now i was scrubbing air before the fan,, and after the fan,, a double,,, plus changing the carbon in the tray was fast and easy
this all worked,, but there was a maintenance schedule to it,, just like any other part of growing

Now i vent out the side window of the house,, and I dont mess with carbon any longer, but it did work when i used it
 

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Tim Fox

Well-Known Member
So normally I would get a 6" fan system and be in a bigger room. I'm now growing tent city and wanted to know what 4" carbon filter is truly the best? I've read so many forums where this person say the ones better but has these cons and anther say the cons are there pros and it's just all different. I'm growing 1 and 1 only plant under a 400 watt sealed air hood sucks air from outside goes thru 2 filters thru the light only and out into the attic. That will be a high powered inline fan to move max air over the light. Since I'm growing in a Sercrete Jardin DR90 I'm going with a 4" carbon filter and always go with Montain Air put I'm having are hard time finding the montain air or even a nice phresh filters to match the CFM. Everything this I see the fan isn't rated to move what the carbon filter recommends. So is the filter is rated at 210 CFM and the inline fan only pushed 160 CFM I've looked online and power say it's bad and going to have an under rated fan for the filter. I'm stuck and need a filter but want a nice 4" inline fan. Also I've read a little, with a carbon filter on the inline fan does it cut proformance do but up to half? Mean if it's rated at 280CFM the filter makes it only move 140CFM?
You really have to look at more than just the CFM rating of a fan. It's like MPG on a car ... Your Mileage May Vary ... The CFM rating on a fan is under ideal conditions, it doesn't take into account duct work.

I run a 6" booster fan hooked up to a 25' insulated tube, the tube makes several bends. I'm sure the fan is not pulling 220 CFM thru that tube. Just like your car gets better MPG downhill, it's easier.

Point: you need to account for the bends and distance the duct work is.

I'd check the mfg site to see if what type of fan the say you should use, but I'd also question why not go larger? The rating on the filter is for NET CFM, you may need a 300 fan to net 200 by the time you account for bends and the distance it has to move the air thru the ducts.

One option is to use several fans, one to push the air to the other. You could put a fan near each end of a duct.
 

Incredible4Mr2E

Well-Known Member
It's a 3'x3'x7' ent with 63 cubic feet. So instead of a inline booster only running air out of the filter only with zero bends and even if the filter get cuts in half by speed it will still take more out bc the inline fan is a 160cfm and the tent is 63cfm. So if it does cut by 50% I should be ok. For the seal hood light I'm going with its own inline fan, six inches and only the light on the fan.
 

Bubblin

Well-Known Member
The carbon filter always is plenty of smell control
This ^

If your getting smell after the carbon filter then it's usually one of the below.
-The filter is shit, either junk to begin with or used up,
-The fan is too powerful for the filter, aka the fan cfm is higher than the filters rated cfm.
-The humidity is too high for the filter to work well. high humidity can royally screw the carbon filters ability to remove smell.

If there's smell escaping the tent seams, zipper etc. then get a better fan for more negative pressure.

Just buy a quality fan and decent filter and your good. Quality filters last around 2 years...

@ OP
4 inch filters aren't any better or worse, they just limit you to using a 4 inch fan or a 4"->6" adaptor - most decent fans and hoods are 6 inches or larger, so 4" will only make things more difficult than they need to be.
 

Incredible4Mr2E

Well-Known Member
Thank you for the replie. The hood will be 6" and like I said I'm just getting a big 6" model for one light only that will be running in a tent with only one light. I guess the other thing I can't find is I want a rcdwc system but one buck in the tent and run 1" pipe outside the tent into the res and have the flower bucket on the other side of we're the 1" tube it fun a half inch pipe running to the res to keep water always moving and finally have a res outside the tent.
 

Dude Guy

Member
I will be running a 6" Hyper-fan (315cfm) with a 6>4 plastic reducer (6$) on a 4"x12" Phresh (200cfm). My standalone grow closet / box is 3x6x6.5 feet = 117cft possibly 120 or so including filter, fan and ducting. I'll be posting a tutorial on the room build and the cfm/cft combo once everything is all set up. I'll let everyone know the results when in flower!
 
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