Georgia Septic Installer Practice Test

Is freeboard required for a precast pump/dosing tank?

1. Yes, to prevent overflow

2. No, it is not required

3. Only in high water tables

4. Yes, but only for above-ground installations

The correct answer is: No, it is not required

Freeboard refers to the vertical distance between the normal operating level of liquid in a tank and the top edge of the tank. In the context of precast pump/dosing tanks, freeboard is not required because these tanks are designed to manage the flow and volume of wastewater without the risk of overflow under usual conditions. The design of precast tanks typically includes features that ensure proper function, such as appropriate sizing and capacity. As a result, the likelihood of overflow is minimized during normal operation, making freeboard an unnecessary requirement. This approach helps in maintaining the integrity of the system without adding extra construction requirements. Higher water tables and specific installation conditions may influence other design parameters, but they do not mandate freeboard in such tanks. Understanding these standards is crucial for effective septic system design and installation.