I just put in a big carbon filter with a 6" fan. Got it set up venting under building with passive intake hole but since I have had it on and venting out the smell is now obvious outside of the building? WTF??! Was no smell before and wanted to get some fresh air to the plants so what do I do now?? How could this be??? The Vent lines are all done right so I am at a loss... Thanks for any help...
Wow, lots of assholes on this thread apparently cant understand English.
First off, how many CFM is your carbon filter rated for? And how many CFM is the fan?
When installing the carbon filter did you make sure to shake it really good to loosen up the carbon pellets?
It sounds like the problem could be
A: fan is too big/powerful for the filter, can be fixed with a fan controller to reduce fan speed.
B: Carbon pellets are all compacted and need to be loosened up.
C: You have air leaks in the line around your fan, can be fixed with Aluminum foil tape.
Also did you build this filter with one of the DIY methods using prefilter pads? Because those things dont work at all.