slow sink drain and gurgling

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slow sink drain and gurgling

Author: Cadmangler (PA)

When master bathroom sink is more than half full, it drains normal until it gets down to about an inch of water, then it's really slow. Took tail pipe and P-trap apart and snaked the drain thru the wall to where it ties into the toilet drain. Tried that two or three times in the past 3-4 months. No blockage or hair trapped in the pop-up/drain, didn't seem to find any blockage up to the 4" toilet drain at any time. Toilet drains fine other than it creates a gurgle in the master shower or in the 2nd bathroom sink drain each time it's flushed. Never had the gurgle issue until I installed a water-saver toilet about 7-8 years ago. Any idea what the problem (s) could be?
Thanks.

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Re: slow sink drain and gurgling
Author: packy (MA) partial stoppage somewhere?
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