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  1. What is a Bathtub Overflow Drain? 2025 Guide with Examples

    Mar 1, 2025 · What is an overflow drain? The point of an overflow drain is to collect the excess water for your bathtub or faucet. The drain collects the water, preventing it from overflowing if …

  2. What Is a Bathtub Overflow Drain? 2025 Guide to Tub Overflow Drain

    5 days ago · A tub overflow drain is the small opening near the tub rim that prevents overfilling by routing extra water into the waste-and-overflow plumbing. When it leaks, clogs, or doesn’t …

  3. What is a Bathtub Overflow Drain? How Does it Work?

    Feb 22, 2022 · A bathtub overflow drain prevents spills and water damage. Learn how it works, why it matters, and how to keep it functioning properly.

  4. Oatey 101: Bath Waste and Overflow | Oatey

    A bath waste and overflow system is a critical plumbing component that connects your bathtub to your household drain line. It prevents accidental overflows and ensures efficient drainage by …

  5. How to Install Overflow Drain in Tub | Easy Explanation (2026)

    May 7, 2025 · This article provides a comprehensive, step-by-step guide on how to install overflow drain in tub, whether you’re tackling a replacement project or setting one up for the …

  6. What Is a Bathtub Overflow Drain? | Angi

    Sep 19, 2024 · What Is an Overflow Drain? An overflow drain is an extra opening toward the top of a bathtub or sink that collects excess water and diverts it to the plumbing pipes. It minimizes …

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    • What a Sink Overflow Hole Is and How to Clean It - The Spruce

      Dec 16, 2025 · A sink overflow hole is a small opening built into bathroom sinks to prevent spills and improve drainage by introducing air to the system. By allowing excess water to drain away …

    • What Is an Overflow Drain? Types and Workings - HighShower

      An overflow drain is an opening that helps prevent flooding in sinks and tubs by directing excess water to the drain pipe when it reaches a certain level. Traditional and integral overflow drains …

    • What is the Purpose of a Sink and Tub Overflow Drain?

      What is an Overflow Drain? An overflow is an opening that helps prevent flooding by rerouting excess water back to the drain pipe once it reaches a certain level.

    • What Is the Point of an Overflow Drain? - Express Plumbing …

      May 28, 2025 · An overflow drain is a built-in secondary drain that diverts water away safely if the sink basin or tub fills beyond a certain point, such as when the main drain is closed or blocked.