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    Plumbing

    Why Does My Kitchen Sink Keep Backing Up?

    Instant Plumbing Team
    April 22, 2024
    Why Does My Kitchen Sink Keep Backing Up?

    If your kitchen sink frequently backs up, you may have a deeper plumbing issue. Explore the potential causes and professional solutions.

    Beyond a Simple Clog

    While an occasional slow drain is normal, a sink that constantly backs up indicates a more stubborn blockage or a systemic issue in your plumbing.

    Potential Causes

    • Deep Main Line Clog: The blockage might be far down the main sewer line, affecting multiple fixtures in your home.
    • Venting Issues: Plumbing systems require air vents to flow properly. If the vent pipe on your roof is blocked (e.g., by snow or a bird's nest), sinks will drain poorly and gurgle.
    • Improper Pipe Slope: If the drain pipes were installed without the correct downward slope, water and debris will pool and cause frequent backups.

    When to Call a Professional

    If plunging and basic drain cleaning methods don't provide a lasting fix, it's time to call a professional. We can use specialized cameras to inspect the lines and hydro-jetting to clear stubborn blockages.

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