Which of the following systems can accept both human waste and greywater waste?

Which of the following systems can accept both human waste and greywater waste?

• A. A Class 2 System
• B. A Class 5 System
• C. A Class 3 System
• D. A Class 4 System

Answer: (B)

A Class 5 System is designed to handle the full domestic wastewater load, meaning it can treat both blackwater (toilet waste) and greywater (sink, shower, laundry water) in one integrated system. That capability is what makes it the correct choice for a setup that generates both types of waste. Other system types are typically limited to greywater only or are intended for special, smaller, or more limited scenarios, so they wouldn’t accommodate the combination of toilet waste and greywater in a single system.

A Class 5 System is designed to handle the full domestic wastewater load, meaning it can treat both blackwater (toilet waste) and greywater (sink, shower, laundry water) in one integrated system. That capability is what makes it the correct choice for a setup that generates both types of waste. Other system types are typically limited to greywater only or are intended for special, smaller, or more limited scenarios, so they wouldn’t accommodate the combination of toilet waste and greywater in a single system.