Gurgling sink drain-already did the Drano/hot water thing & also the baking soda & vinegar/hot water thing. It still gurgles after I put any water down the drain. Tha...
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This just started a few weeks ago. When water runs from my 1/4 sink into the drain, it seems to back up and leak out of the pipe. This never happens with my 3/4 sin...
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It's probably a blockage in the vent pipe. Here's an article for you:
https://www.fivestarrated.com/blog/why-does-my-kitchen-sink-make-a-gurgling-sound.php