Few questions for newbie building first grow tent set up
- Thread starter Kentucky_Thunder
- Start date
Kentucky_Thunder
Active Member
I didnt look at it that way. That makes loads of sense though. With what space outside my tent wouldnt be any problem what so ever to be honest, and like you said, would give my small little set up more room for plant growth. [added: plus with my disability it would work out better Id think because I wouldnt have to be leaning over inside my tent when pre filter needs to be changed allowing myself to change it on the outside. End of edit].
Do you also recommend putting fan outside tent as well by chance?
whitebb2727
Well-Known Member
I'm from KY.
Here is my thread with a 2x4x6 cab to give you a reference.
https://www.rollitup.org/t/oak-wardrobe-organic-grow.870933/
Here is my thread with a 2x4x6 cab to give you a reference.
https://www.rollitup.org/t/oak-wardrobe-organic-grow.870933/
Kentucky_Thunder
Active Member
Hello fellow Kentuckian! Im checking your thread out now. Question, you show and say you filled your filter with cotton. So you dont use a pre-filter on outside, just stuff cotton inside instead?
whitebb2727
Well-Known Member
Use the ipower filters from Amazon. They work great. I used to use phresh. I now refill the filters. I bake my carbon to refresh it.
I oversize my filter. I use a 8 inch filter on 4 inch fan. Any 4 inch fan will be over kill for a small tent. I think your tent needs less than 50 cfm. A variac will help.
I oversize my filter. I use a 8 inch filter on 4 inch fan. Any 4 inch fan will be over kill for a small tent. I think your tent needs less than 50 cfm. A variac will help.
Kentucky_Thunder
Active Member
Ive done loads of gunsmithing in the past, even some now. I'm a little familiar with reintroducing carbon when I would have to quench so I could home machine a part, then re carbonize it. Now I know were talking metal and growing plant, but the idea of introducing carbon I "think" would basically be the same principal, just a few changes and tweaks I assume?
Before, I was pretty set just to buy a new main filter, knowing they are charcoal active, but didnt think of baking to refresh. But with my experience with metals, it makes sense.
Im a little familiar with a variac, but Im not sure I want to go that far "as of right now that is", as to keep things still small and a bit simple for starting hydro set up, unless its recommended that its really needed.
fragileassassin
Well-Known Member
Oh that's actually my 2nd setup. I forgot there arent pictures of my flower setup in there. I did the bid 10x10 first and was going to do seed to harvest in there but decided that is way to inefficient so I built that veg setup.
Here's the big one.
Attachments
whitebb2727
Well-Known Member
Here is a pic of my filter.
whitebb2727
Well-Known Member
That was for a silencer on the exhaust side not the actual filter.
Baking just burns off voc's.
You can also buy carbon from online hydro shops. Look for coconut carbon.
Kentucky_Thunder
Active Member
Ok, doing some more research on the cfm I need this is what I came up with. 2x4x6 grow tent. 40 and was going to mult. 2 because I was thinking 6" inline fan but mult by 3 for inefficient path if I run a 4" inline fan. Being I cant find any 6" fan below 300cfm, except something I dont really trust, looks like a small cheap oil drum. But 4" inline fans cfm falls well within the cfm I calculated. Its just Id have to run inefficient path as to have either fan & filter if inside the tent suspended, or if outside, have duct work suspended up high, being my vents for 4" are on the bottom, unless the top 6" tent vents can be tied enough to seal a 4" duct?
Anyway, thats just my thinking, so anyone, please feel free to correct me.
Anyway, thats just my thinking, so anyone, please feel free to correct me.
fragileassassin
Well-Known Member
Youd be fine in the 3-400 range. There should be some adjustable ones in that range you can turn down.
My ducting route sucks but it still does fine. comes off my fan and does a U turn down to go in the only hole big enough in my tent at the bottom then U turns there again so I can draw in air from the top of the tent inside.
My ducting route sucks but it still does fine. comes off my fan and does a U turn down to go in the only hole big enough in my tent at the bottom then U turns there again so I can draw in air from the top of the tent inside.
whitebb2727
Well-Known Member
Its way less than that. For a 2x4x6 it's less than 50 cfm.
2x4x6= 48. 48÷3= 16 cfm.
Length x width x height is the cubic feet. You have to exchange the air every three min. So divide the cubic ft by 3 for the cfm requirement.
2x4x6= 48. 48÷3= 16 cfm.
Length x width x height is the cubic feet. You have to exchange the air every three min. So divide the cubic ft by 3 for the cfm requirement.
Chef420
Well-Known Member
If you have the space outside the tent absolutely. I’ve learned all this the hard way.
Kentucky_Thunder
Active Member
Its the most logical way it sounds. Question for you, being outside my tent, wouldnt I want to put the pre-filter inside the filter then being the fan will be blowing into the filter instead of filter first then fan if it were inside?