i 100% agree the pre built metal cab with those shit 100 watt led and micro hydro setups are such a waste of money...so very over priced...i built this box for 300$ with the CFL's would have been 450 - 500 with a 400 watt hps witch i think would have been to big.
Calcium deficiency would be my guess by looking at the plants.
http://cdn1.buydutchseeds.com/media/wysiwyg/nevashhh/Calcium_Deficiency_in_Marijuana_Plants.PNG
I do this in my Normal house hold vents to add a fresh smell though my house, Its 100 times cheaper then say glade plug ins or frebreez spray. I can honestly say i havent thought of doing on my vent in my box! As said wouldn't be a long term fix but def usable for un announced visits
like the layout other then the Airflow as was mentioned...But one big thing i got beef with that "mylar" your using looks more like tinfoil holding the creases and wrinkles, i woulda went with something a little more uniform such as Panda film (also know as Black & white)...
The orig build was 300-350$ then i changed the lighting from the static to the hoods for another 20$ with some aluminium and rivets. so lets round to $400
Please post a link as i would love to see what you come up with!
And To Matt Id have to agree To grow Autos in my box i would have to re-construct for 1 room to allow more to grow at once. Also As said you dont have as much of a training period to work with so its pretty much just vertical...
I use sheet metal in my job everyday and it would have turned out much nicer if i had made it out of stay galvanized steel. But the cost factor just isnt there. As for LED's i thought about it but heat isnt an issue at all right now in fact im thinking about swaping the Flower room over to a 400...
This was the original plan. I deviated slightly and have changed the overall design for the lighting quiet a bit since starting..But the box its self is built as shown on these prints. only thing not shown on these prints is the doors and the plywood used for the walls on the outside but thats...