Not looking to hijack...but just read something here that I wonder about...
I have a 6" Hurricane on the ceiling pulling directly through a carbon filter into 6" PVC with one 90 degree elbow out the room. I have a 6" intake on the floor (opposite the carbon filter)that I have an 6" inline fan connected to on the inside and the "Amish Redneck Filter Cooling box on the outside" (can cooler with hepa filter). That said, I have been generally running with the intake fan not turned on for a couple reasons...but mainly because it seems to be running even when its not. My room is pretty airtight so the Hurricane pressure out is actually pulling what seems to be a reasonable amount of air in. (Plants seem ok, room has a little smell but nothing outside it). Actually kind of fun that I can hook a speed controller to just the Hurricane and seemingly control the speed on both fans. So bottom line is, Justugh, are you telling me that my intake is probably not enough and that I should really have that intake fan turned on high and/or something in addition?? Am I making my Hurricane work too hard...is that possible?