AL Sewer Projects Practice Questions - Alabama Sewer Projects Contractor Examination Exam

What is the primary purpose of a gravity sanitary sewer main?

To pump wastewater under pressure to a treatment plant To convey wastewater downhill by pipe slope without mechanical energy To store peak wastewater flows until off-peak hours To treat wastewater by biological oxidation in the pipe

Correct Answer:

To convey wastewater downhill by pipe slope without mechanical energy

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