slow draining kitchen sink
I have a 2 basin kitchen sink that has been draining slowly and been making gurgling noises for a few months... I took apart and cleaned all the piping under sink and I even brought in the outdoor hose and flushed the drain pipe several times that extends into the outer wall... the water did not back up while flushing the pipe that goes out thru the wall so it seems to be clear??? any ideas why it still drains slowly and how to fix it??
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