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How far above the floor should any sump or Hub drain for receiving Clear Water waste extend?

  1. 1 inch

  2. 2 inches

  3. 3 inches

  4. 4 inches

The correct answer is: 2 inches

The correct answer is that a sump or hub drain for receiving clear water waste should extend a minimum of 2 inches above the floor. This requirement is established to ensure proper drainage and to help prevent potential cross-contamination with other drainage systems. By maintaining this height, it aids in the elimination of standing water around the drain and helps to ensure that any clear water waste flows freely into the drainage system without obstruction. Additionally, positioning the drain 2 inches above the floor helps maintain a clearance that can prevent debris or sediment from entering the drain, which is essential for the efficient operation of the drainage system. This measurement is important in the context of plumbing code regulations, ensuring compliance with safe and effective practices in plumbing installation and maintenance.