Growbox walls sucked in by air

[Tris420]

Hey 420 Friends So i Got A new inline Fan ! Any Ideas on How to avoid that the walls get sucked in ? I loose maybe 5cm on each side because of that ... I dont want to buy anything for it tho ... I know i could take a pvc piece and put it there or a piece of wood .. But Maybe there are other Ideas? Thanks in advance !!

 

[Walrus]

This happens to mine too I just didn't worry but I looked into it and found you can get cheap fan speed controllers, I didn't buy one as apparently they added additional noise but you can also get more expensive ones and ones that require wiring too.

 

[JuanCarlos]

Fan speed controllers adding noise is dependent on your fan, not the controller. Mine is fine. Walls being sucked in is a good thing, negative pressure keeps smell in the tent and exhaust. I have seen someone on here use curved wood slats to keep the tent from sucking in, can't remember who it was though. I wouldn't worry about it thought, it happens.

 

[Shaggn]

When using a fan controller, make sure the fan is the proper type to be used with a speed controller. If you are using a tent, make sure your vent flaps aren't completely closed or open them up a bit more. I ran into the same problem so I removed my vent covers completely. Still sucks in quite a bit but not near as much as before. Peace!!