View Bathroom Sink Drain Plumbing Diagram. Permit a single basin lav to be roughed in with a 1.25 vent and a 1.25 trap. Drain and vent lines are important aspects of your home's sewer system.
You'll see the vertical to horizontal transition pictured below. And there you have it, a sink draining and sealing like it was brand new! It takes some extra time to draw out your plans to make sure you'll be running lines the best way possible.
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Bathroom sink & bathtub drain strainers. It takes some extra time to draw out your plans to make sure you'll be running lines the best way possible. Wet venting is most common in conjunction with toilets and sinks; How bathroom sink plumbing works, including a diagram of the drain plumbing assembly.