First Grow: DR40 Grow Tent, 150 Watt HPS, Hempy Bucket, White Widow

tsky

tsky

Active Member
4 inch filters do fit just need to mount the fan outside which is easy and saves messing about having to make one.
 
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spectresmoke

Member
Knowing what I know now, I think it's better to over-do something than to under-do it... That being the case I'd go with the six if you weren't sure, that way if you ever expand your grow, you got it covered.

Running the tents in a closet or wardrobe can be tricky, depending on how much airflow is getting to them. I run these in closets, so when the door is shut no air gets in... I leave it a crack open during lights on to keep the temps at 80, run at night. A wardrobe might be easier since you can just leave the back off, and it's not quite as sealed as a closet.

For intake I'm running an 80mm fan, but again, kind of wish I had gone with at least a 120mm. That being the case, look for CFM rather than size. Believe it or not, I found 120mm fans that moved less air than the 80mm ones I have (although they work fine).

That being the case, I would over-do the air than under-do it. Go with the 140mm (it might save you a headache later), but make sure it moves a good amount of air. My 80 moves 40 CFM, so try to get as close to 90 as you can. Double the flow will help a lot.


LordStoner said:
So glad I found this thread

I too am about to start my first grow using the DR40 with a 150w HPS. I'm worried about the temps for the tent as mine will be going into my wardrobe. I was thinking about getting one of these for extraction:

http://www.growell.co.uk/p/0231/GroWell-Complete-Extraction-Filtration-Kits.html

However I am unsure to go with a 4" or 6".

As for intake I was thinking of using a 140mm PC fan, do you think that will be enough or will I need more intake.

Advice please? :)
Click to expand...
 
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spectresmoke

Member
See the pics I have of my fan on the outside... What I would do, if I were to do this over, is get a 6" inch fan and carbon filter combo, and mount the fan anywhere in the closet and just run hose to the exhaust port. I have two of these, so I would probably actually run them into a y-adapter, then into the 6" inline fan and filter.

A good 4" fan would work, and might actually fit in the sleeve since it's about 5 1/2 inches diameter. If not, rest the fan ontop and run a reducer adapter to sit into the tent.``````````````
 
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spectresmoke

Member
I beg to differ... the insulation and ducting helps TREMENDOUSLY. The trick isn't just to wrap it around the fan, but to use the insulation to reduce the size of the outlet exhaust, (to taper it, like an exahust in a car), so that the sound is bounced and absorbed before exiting. On a fan, the noise doesn't come from the motor itself but from the airflow. Change this up, bend it around, absorb its energy and you silence it a lot.

My 6" fans wrapped-up, run just as quiet as a 4" booster fan not wrapped-up... That's a HUGE difference compared to a non-wrapped 6". Before I wrapped them, I actually thought about getting rid of them because they were too loud (when both of them were on, it was way louder than a bathroom fan, echoing in the bathroom). Now I can barely hear them.
 
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LordStoner

Active Member
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spectresmoke

Member
For Odor Control, this is what I've been using so far...

I use one of these guys, one in each tent...

http://www.hamiltonbeach.com/odor-eliminators-true-air-plug-mount-odor-eliminator.html

Then in the closet, I have one of these bigger guys...

http://www.hamiltonbeach.com/odor-eliminators-trueair-room-odor-eliminator.html


Believe it or not, the "smokers" replacement filter is a sleeve filled with active charcoal... So I have the plug-in filters in each tent cleaning up the air (it helps to protect from mold too) and circulate it as well. Then the air that is exhausted gets vented into a part of the closet with the bigger air filter and some ONA. Odor hasn't been a problem so far, but I mainly keep the doors closed or cracked only an inch.
 
tsky

tsky

Active Member
lol idno personally i just use passive intake and that works just fine if u have a decent exhaust
 
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spectresmoke

Member
@tommiD, will do!!!

So here are some pics of how I setup my closet... My two DR40s, my fans, and how they sit in the closet.

Here is a picture of the tents and the towels I have partitioning-off the upper portion of the closet for the exhaust. The second one is of the "curtains" pulled back, exposing the exhaust and the air-filter thing I have in there... It has active carbon filters in it, and does a surprisingly damn good job. The airflow is directed down toward the ground between the two tents, into a jar of ONA Gel.



 
jguy21

jguy21

Active Member
What kind of fan/carbon filter are you using?

Also I didn't know you had two separate tents, very nice bro. I need to buy a dr40 so I can keep a mother plant and vegg in it.
 
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spectresmoke

Member
That's the one of the filters in the picture. I have smaller filter units in each tent as well... And a bottle of ONA. So the smell is cleaned up inside the tent, then exhausted into that area where it is trapped and filtered again... They work surprisingly well, and have their own fans in there that work well enough.
 
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LordStoner

Active Member
Oh yeah another question Spectre :D

Do you have the CFLs and HPS on at the same time?

Or are you using CFLs for vegging and HPS for flowering? :S
 
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spectresmoke

Member
I use CFLs for VEG, but right before the switch I start using a combo of them both. Then for the first couple weeks of flower I leave a low power CFL in there. But it's not for light, it's for color spectrum. I figure the extra color spectrum couldn't hurt, only help during stretch periods. After that it's all HPS.
 
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LordStoner

Active Member
spectresmoke said:
I use CFLs for VEG, but right before the switch I start using a combo of them both. Then for the first couple weeks of flower I leave a low power CFL in there. But it's not for light, it's for color spectrum. I figure the extra color spectrum couldn't hurt, only help during stretch periods. After that it's all HPS.
Click to expand...
Thanks a lot again man, you've been so helpful.

How comes you dont use HPS for veg though?
 
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spectresmoke

Member
I don't like having to run the HPS for 24 hours, it gets hot. Also, the spectrum of light that it puts out isn't ideal for the veg stage of growth, it's too red (so to speak). It's just like the sun... in the late summer months the light that hits the Earth is more red at that time, and so plants have grown accustom to getting red light and starting their stretch and early flower phase. So now, even in hydro tents grown with artificial light, color spectrum plays a huge role in how a plant grows. The bottomline effect is, if you veg with HPS lights you generally cause your plants to stretch more than they would under whiter or bluer lights. CFLs come in all sorts of spectrums, HPS not so much. That's why a lot of growers use MH bulbs/ballasts for Veg and HPS for Flower. I'd rather use a MH bulb, but don't have a ballast and didn't think to get one of those dual-function ballasts when I bought my light, so I just use the CFLs.

Maybe in the future I'll spring for just one of those dual-function ballasts. That way I can use one tent to veg all the clones (if I switch to 2-liter SOG, I can fit 10-12 plants in one tent for VEG, then switch half of them over to the other tent use them both to flower), and while the other isn't being used, I can dry in it.
 
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spectresmoke

Member
So the trichomes on the LA Con look just about ready to harvest... Which is unusual considering she should have another week to go till 60/40. BUT, it looks like (almost more than half) of them are just about amber. The rest of them are clear, and some of them a really, really deep amber... How dark should they get? Should I wait till most are the darker shade of amber? It looks like they are all developing at the same pace.
 
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