I bought an oscillating fan that clips to a corner pole, and wondering if anyone has a hack for keeping the fan from touching the tent when it sucks in when sealed up, and exhaust fan running. I’m sure that’s hard on the little motor.
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When the tent sides suck in with your exhaust fan running, that indicates that you don’t have sufficient “make up” air. Either an input fan is needed or do what I did was to ensure that you have adequate inlet duct size.
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Negative pressure is typically a good thing. Guaranteed that all the odors get sucked through a carbon filter. It can add extra wear on the duct motors though. Look for High CFM bars for grow tents or DIY some. If you don’t mind some smell possibly escaping, increase the air in. I like to use ducting in the lower ports. A couple bends will eliminate light issues and several have recommended the black ducting cap filters to keep bugs or whatever out.
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Found a pic from the 4x4. The green bars around the perimeter of the canopy are what I used for high cfm.
@CoyoteCody 3d printed some brackets for me that connected to the poles and the bars. (Wooden dowels)
He might still sell them.
The walls still suck in above and below the bars some but they helped. Ran them in nearly every tent. Along side my scrog frame that also helped keep them from sucking in.
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Thanks, I updated my intake, and now it really sucks the tent in hard. I did this. I think I’ll just run it without oscillating until I can figure it out.
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Looks like that let can handle up to 8” in? That’s good. Can always increase the size of that ducting
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Or multiple 6" each going through a different lower port.
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Ac infinity fans let you control the oscillating. Not sure exactly what the angles are but. It has i believe 7 settings. I have mine on 3 and have zero problems.
It was my understanding as well that negative air pressure is a good thing. Mine does it too. ACI make mid support bars, I suppose that would work.
I still have them listed on ebay, etsy and Amazon, im resin printing them now.