NM CID MS-3 Practice Questions - New Mexico CID MS-3 Cesspools, Septic Tanks And Sewers Examination Exam

A 4-inch building sewer may be installed at 1/8 inch per foot (1 percent) only when:

The contractor prefers a shallower outlet invert It is first approved by the department because a 1/4-inch-per-foot slope is impractical due to structural features The pipe is perforated drainfield pipe The run is shorter than 20 feet

Correct Answer:

It is first approved by the department because a 1/4-inch-per-foot slope is impractical due to structural features

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