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

A two-compartment septic tank is generally preferred over a single open chamber because it:

Doubles the amount of sludge that must be pumped each month Improves solids retention and reduces solids carryover to the drain field Eliminates all need for a drain field Allows the tank to be installed above the flood elevation without a lid

Correct Answer:

Improves solids retention and reduces solids carryover to the drain field

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