Specialized training text regarding the maintenance and management of septic tanks. - Title: Septic Tank Maintenance and Management, Volume 1 - Title: Septic Tank Maintenance and Management, Volume 2 - Related Materials: Septic Tank Related Laws and Regulations Collection - Publisher: Japan Septic Tank Association (Public Interest Incorporated Association) - Type of Text: Training Text Thank you for viewing. This is the 2023 edition of the text. This text was used during a two-week lecture, so it contains highlighting and writing. The parts that frequently appear on the Septic Tank Management Technician exam are highlighted, so I hope you will find it helpful for your exam preparation.