bathroom sink drain

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    • #285155

      Sink drains slow and gurgles; removed trap, drain plug, no blockage; drain line goes down to a 90 elbow then into main waste line; any suggestions ?

    • #308044

      These could be symptoms of an improperly vented sink drain line. You mentioned the drain elbow but not a vent pipe… The vent should go upward from where the trap arm enters the waste line. If you have a mobile home, they are often not vented well and have this problem.

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