Grow TENT questions!

Hey everyone,
I'm thinking about getting a Gorilla Grow Tent. Are they worth the extra price? Can anyone help me figure out the components I need to conceal the smell? I'm looking at the GGT 4x8 and plan on putting in two 600w lamps. Aside from how I hook up my light exhaust, how should I hook up my air intake and exit? Should my intake be passive? Let me know if you have anything you can share. I look forward to hearing what y'all think.
Happy geraniums,
Shart

To maintain negative air pressure for smell id skip on any intake fans unless its just a small pc fan or osc fan near the intake blowing toward the outtake. Just make sure you get the cfm right volume/(3-5) and add about 50% for the filter and HID heat

bro54209 said:

To maintain negative air pressure for smell id skip on any intake fans unless its just a small pc fan or osc fan near the intake blowing toward the outtake. Just make sure you get the cfm right volume/(3-5) and add about 50% for the filter and HID heat

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volume X (3-5) , not volume/(3-5)

Red1966 said:

volume X (3-5) , not volume/(3-5)

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No its divided by because its amount of air vented (whole volume) every 3-5 minutes so if you multiply you would vent all the air 3-5 times per minute instead of the required 3-5 minutes to ventilate the whole space

Okay, lets dial back this question to absolutes. My volume is essentially 224 cubic feet? 4x8x7?
I appreciate your helping 100%. Math has never been my hotseat.

bro54209 said:

No its divided by because its amount of air vented (whole volume) every 3-5 minutes so if you multiply you would vent all the air 3-5 times per minute instead of the required 3-5 minutes to ventilate the whole space

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So my 4x8x6=192ft3 tent would only require a 64 ft3 fan?

I think it should also be noted that my exhaust fan should probably be rated for my scrubber too?

Id use 6 inch fan with 224/4=56 = cfm required in order to ventilate out the space in 4 minutes add 15-20% each HID and10-30% more if ambient temp/ humidity are high so about 75CFMs if you multiply by 5 you'd require like 1500cfms wayyy too much, too much ventilation and your plants will dry up and be stressed

bro54209 said:

Id use 6 inch fan with 224/4=56 = cfm required in order to ventilate out the space in 4 minutes add 15-20% each HID and10-30% more if ambient temp/ humidity are high so about 75CFMs if you multiply by 5 you'd require like 1500cfms wayyy too much, too much ventilation and your plants will dry up and be stressed

Click to expand...

56cfm +(high end)50% is only 84cfm

Okay, so with my cubic footage, and 1200w of light, what fan would I need?

gorilla grow tent is absolutely worth it!

all the unnecessary math.... is a question that been asked about a thousand times before no offense. its standard answer is 400 CFM 6 inch in line with filter. double the size for your passive intake so to 6 inch ports open, or 1 6 inch port with a 200 CFM intake fan.at least that is my opinion, I ran 400 up to 1000 watts in a four by four with that method.

there are other variables to consider to, will you be running sealed hoods will you be using AC or outdoor air, will you be using co2 enrichment

I've never really understood why people grovel on someone else's thread. I look at hundreds of posts everyday, and although I have a plant biology degree and recognize when "professionals" misinterpret staminate/pistillate primordia, I don't lash out. Also, if you learn a little structural botany, plants do not store "excess" nutrients in the leaves (try the roots), and since the roots only take in what nutrients they need at any given time, a flush is not necessary (Do you think all your edible fruits and veggies are flushed (tobacco?) The smoothness and taste comes from a good cure, which I've found 90% of people on RIO botch. Oh yeah, nutrient burn generally occurs when the ppm is too high, which results in different elements locking each other out, allowing an imbalance of useable food(macros and micros). Don't let me forget, your grow might be organic, but the blood meal you use in your mix is the result of over productive slaughterhouses in Texas (have you ever heard of PITA?) and the Guano you use is stolen from precious microclimates in South America. I never chime in unless I have something helpful to offer the author. I'm a scientist, not a carpenter, so excuse me for not understanding some of the intricacies of construction.
P.s.,
While you decide to stress and deprive your mature girls of the necessary energy to round out their lives, I'll keep feeding my girls a well-rounded diet and enjoy the flavors and yields that occur during the last 2 weeks of their beautiful lives.
Cheers,
Shart

I love everyone