I was investigating why is one of the air vents so loud when AC is running. Turned out the air duct is not actually behind the vent, but to the side of it.
This is looking from the vent towards the duct: https://imgur.com/LoVmJLB
Video for better context: https://imgur.com/a/xije77u
Is this a common thing? The casing for the grille (left of the picture, the white thing) is restricting air flow a bit and making the whole vent kinda loud.
I am thinking to get a dremel and just cut off the extra casing that’s serving no purpose
Edit: mixed up return vs supply. This is a supply vent.
Cardboard sounds good. I dremeled some of the casing, that has reduced the noise a decent bit, but still very much louder than the other vents.
I thought only software engineers do hacks in production.
I feel like most professionals routinely go to hack mode as the first course of action. haha