extra intake near outtake

In my poly plastic room i have a 6" intake (passive) and a 6" active outtake ( with inline fan)

My problem is when i zip up my room the negative pressure is so great its sucking in my walls so much that its closes in on to some equipment and my fans.

So what im doing is only zipping up my door most of the way up, like 80%-92℅ and still sucks in my walls quite a bit but not neaerly to the degree before.

My question is it okay to leave my setup like this? I have my outtake on an adjacent wall near my zipper door, and im worried that having my extra intake kind of near my active outtake that the fresh air comming in is mostly getting sucked back out. I have an oscilating fan in the room as well, and my other intake vent is on the opposite side of the room and near the floor.

Passive Intake area should be 2 - 3 times the exhaust area

SnapsProvolone said:

Passive Intake area should be 2 - 3 times the exhaust area

Click to expand...

So I should be good even with the extra intake comming in near the top of the room ?

With my oscilating fan, and outtake fan running should I still get the air comming in the room well circulates?

Circulated *

other option is to turn exhaust fan down obviously depending on your set up!

It's generally best to have your intakes at the opposite side to your exhaust.

I agree with Snaps.

Anywhere between 2-4x the size of your exhaust spigot for passive intake.

I use 2x5" and 1x6" passive intake vents plus my closet door is not completely sealed.

I use a 6" fan for exhaust.




J

Well it Is what it is. No fan controller so I can't turn fan down.

Also like. I mentioned I DO have a an intake on the opposites side of room (6")and an additional intake (door zipped up 80-90%)