Hi -- I don't have a smart phone so can't easily send you a photo.
There are 2 white PVC pipes, at different heights, each with a curve at the end.
I found this on the net -- looks somewhat like this.
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Does the T at the end make it more quiet? What's the purpose of it?
Okay, thanks. We'll try this.
Is there any way to also insulate the pipes, or is that a bad idea. Even if insulating them (the white pipes on the outside of the building) is doable, would that help quiet the noise?
Okay. Thank you very much! Have a good evening.
Hello again, Douglas. It turns out we do have that "T" at the end of the pipes (hadn't looked at it for a while); it opens up towards the sky/down toward the ground.
Any other suggestions for quieting the "hair dryer" type noise?
Searching on the net, quite a few people have the same problem where buildings are close together (we have multilevel attached row housing).
But, alas, no one seems to have any solutions....
It's already a large pipe. Sigh.... But thanks for trying to help.