Dayummmmmmmmm. I thought i was overkill. So heres another thought...
I know that a carbon filter is supposed to have slightly higher cfm rating than your fan, but what happens when it is SIGNIFICANTLY higher? I'm trying to understand the physics/math behind it. Say a 1065 cfm fan is attached to a 3000 cfm carbon filter...what kind of effect does this have?
I would really prefer to not use passive air. Doing the math, 25% reduction on the 1065 fan due to the carbon filter puts it at 800cfm exhaust. About 20% reduction on the 400cfm puts it at 320 cfm intake. I thought that should be fine but it isnt NEARLY enough. If i keep the fan at 100% (800cfm) the walls of the tent concave so hard so fast that i quickly turn it off because it looks like its literally going to break the tent. I need someone to explain to me the math behind exhaust and intake CFM. A ratio where i would get slight negative pressure to keep everything inside.
Am i just over complicating it in my head? Logically if you have 800cfm exhaust and 800cfm intake then you have 0 negative pressure and no concave. Slightly reduce the intake to something like 600cfm and you'll have your slight negative pressure without too much strain on the tent supports. Is it this simple?