The rate of accumulation of sludge in septic tanks is recommended as« Back to Previous Page

A. 30 litres/person/year B. 25 litres/person/year C. 30 litres/person/month D. 25 litres/person/month.
Posted by Civil Engineer
Asked on August 16, 2016 1:20 pm
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A. 30 litres/person/year

Posted by Civil Engineer
Answered on August 16, 2016 1:20 pm