hi I need help with sorting the positive pressure in my grow tent, I was using a 6 inch intake fan that was running at 275 m3/h, and I was using 5 inch extractor fan which was little less powerful so I gave bought a 5 5inch switch air fan that works at 400 cbm/h and have put the 5 inch extractor as my intake, so my extractor fan is more powerful then my intake but I still have positive pressure, when I attack the extractor to the carbon filter the flow of air is reduced a lot, I have put 2 big zip ties around it to tie it to the top of my grow tent, want to know how to fix this do i need like a 8 inch extractor fan or something because I'm running out of idea haha any help would be great .
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