Quote Originally Posted by cypher420
so if i just moved the scrubber to beside the fan would that work? but keep the ducting from the left 6' hole of tent to the air hood so cold air still hits it?

I guess i can cut it bigger than 6" or something, btw what do most people use to cover their vent holes during dark periods?

someone else thought a 340cfm inline fan would be all i would need to exhaust the tent. were they wrong or it can still work if i hook it up correctly? lol
Dude. Read the sticky. You want to pull the air through the scrubber. Your setup looks like this: Air in Tent > Carbon Filter > Light > Fan > Exit. You can also swap the light and the fan such that you are pushing air past the light.

No need to cut bigger holes. There will be multiple vent holes in that tent. As for light leak from the vent holes, You will place a 90 degree duct elbow outside of the tent. This will prevent light entering from the vent holes.

Let's do the math on your CFM needs.

1. H x L x W / 5 where 5 equals the number of minutes it takes to exhaust all air from the tent.

2. Take that number and add 10% for each foot of duct, carbons scrubber and fan.

3. Take the original number from item 1 and x by 1.5 for each 90 degree duct elbow.

4. Take the original number from item 1 and x by 1.3 to account for the resistance created by the scrubber.

Add up items 1 through 4. This is the CFM of the fan you will need although you should add 15% to account for cooling needs and another 10% for good measure. Get a fan speed controller so you can dial it down.

Let me know what number you come up with. I'm curious.