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

What is the main reason to install watertight risers to grade over septic tank access openings?

To hide the tank from the health department permanently To allow inspection and pumping without excavating the tank lid each time To increase soil absorption area of the drain field To vent the building plumbing stack

Correct Answer:

To allow inspection and pumping without excavating the tank lid each time

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