Septic tank servicers and sewer pipe cleaners need knowledge in the following areas:
- Customer and Personal Service: Providing special services to customers based on their needs.
- Transportation: The methods and costs for moving people, goods, and materials.
- Mechanical: The design, use, and repair of machines and tools.
- English Language: The meaning and use of the English language.
- Public Safety and Security: How to protect people and property.
- Mathematics: The rules and uses of numbers.
- Administration and Management: How to run a business or group.