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IMG_8454[1]
Hamberg

IMG_8454[1]

Prep sink trap
Well I don't like the looks of that S-trap!
Even with a vent tied in further downstream, it's not a legal plumbing code setup.
Theoretically a good flow can suck that water seal out or partially out and cause gurgling sound. That wouldn't explain gurgling from the other sink, however.

Still more to it.

I would consider adding an AAV after that trap, under the sink, as high as possible,but not so high that you couldn't replace it.
 

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Category
General Plumbing Photos
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Hamberg
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Device
Apple iPhone 7 Plus
Aperture
ƒ/1.8
Focal length
4.0 mm
Exposure time
1/60
ISO
25
Flash
Auto, did not fire
Filename
IMG_8454[1].JPG
File size
1.8 MB
Date taken
Thu, 05 March 2020 10:02 AM
Dimensions
4032px x 3024px

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