Needing a little advice regarding 5x5 tent

Marla 420

Marla 420

Well-Known Member
Hello I'm planning on growing in a 5x5x7 tent in my bedroom closet. I have a 8inch vortex 748 cfm fan, 6 inch growbright carbon filter, 600 watt hps/mh cool tube. I was planning on venting through the attic with a 6 inch hole. So my question is what is the best way to set it all up? Fan outside the tent to keep temp down? Fan>Reducer>Scrubber>CoolTube>Out of tent to attic???? Do some setups work better than others(I heard you need negative pressure in tents or something like that?)? Ohh and I plan on doing Hempy 2 litter bottles with C99 to keep light bill and smell down.

Any feedback will be greatly appreciated thanks for reading.
 

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Crab Pot

Crab Pot

Well-Known Member
You can either put the exhaust fan inside or outside the tent, I know for a fact, try it. It really doesn't make much difference, just what ever works better for you.
The negative pressure occurs due to the exhaust fan pulling air out easier than the air coming into the tent.


Getgrowingson said:
No I would run filter fan light then out. Want to keep the fan inside to pull negative pressure inside the tent to keep stank inside. That is what I do on my 5x5 setups.
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Spaz419

Member
i have a 5x9x7 and i have a 8 inch max fan connected and is able to pull the sides of tent in....depending on room temperature around the tent it usually cools it off enough to shut down round 75. I am only running 1 x 1000 and i have the divider up * just finishing 2 plants i took outta my 3x3 im upgrading from

* also i have a 6 inch hurricane that i run on my 600 watt in a 3x3x6.7..and its kindda over kill for the 3x3.hella sucks in teh sides from neg pressure.
 
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jaysun0077

Member
Crab Pot said:
A long ways. How far to you need it to go? It's way over kill for 600 watts in a tent. That's one reason I suggested the speed controller.
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Possibly 40ft. Venting 2, 315w cmh. Then when the time comes 1 or 2 more. I'd rather have too much turned down, then not enough cranked up all the way.
 
Crab Pot

Crab Pot

Well-Known Member
jaysun0077 said:
Possibly 40ft. Venting 2, 315w cmh. Then when the time comes 1 or 2 more. I'd rather have too much turned down, then not enough cranked up all the way.
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I like to run exhaust fans turned down also @jaysun0077, much more pleasant to be around. I don't see any problem with your venting as long as you have a good air supply coming in. 4 lights would only be 1260 watts. Piece of cake in 8" ducting. Try to use insulated solid pipe if you can for that long of a run, rather than the flex stuff. Air will move with less friction and it will be much quieter.

What's the footprint with the 315w cmh? How to you have your lights set up, in hoods? I ask because I've been seriously considering switching over but I was looking at two bulbs in a double ended hood to replace a 1000w.

Sorry Marla:), didn't mean to hijack your thread.
 
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