I have a couple questions regarding ducting and the filter.
Does it matter where in the tent the filter is placed (does it need to be at the top, can it be in the middle, can it be at the bottom)?
How important is negative pressure? My old grow setup I used the same ducting, filter and fan and it created negative pressure that obviously sucked air into the tent. You could visibly see the tent suck in. I have since extended the exhaust fan and it no longer seems to create as much negative pressure…will this be an issue, if so, should I add a second fan to pull air to create the negative pressure?
BTW I am using 6" ducting.