Why Are U-bends Used in Plumbing?
U-bend pipes are installed under sinks and toilets to provide a water seal against the outside sewer pipes. The U-bend retains a permanent p
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Water Seal
Why Is the Pipe under the Sink Curved?
Why Is the Pipe under the Sink Curved? The U-shaped pipe under a sink is called a water trap. Every sink, toilet, and bathtub in your house