Georgia Septic Installer Practice Test

What is required for dosing tanks when more than 1000ft of absorption trench is needed?

1. Single pump configuration

2. Alternating siphons or pumps

3. Gravity flow system only

4. Backup cisterns

The correct answer is: Alternating siphons or pumps

When there is a requirement for more than 1000 feet of absorption trench, using alternating siphons or pumps is essential to ensure efficient distribution of effluent. This setup allows for a more balanced and controlled discharge of wastewater into the absorption area. Alternating systems help prevent the trench from being overloaded at any one point, promoting even wear throughout the system and preventing saturation or failure of any particular section. Additionally, alternating siphons or pumps can maintain consistent pressure and flow rates, which are critical for the effective operation of large absorption systems. This means the system can manage variations in flow and prevent blockages, thus extending its lifespan and functionality. In many cases, alternative methods like gravity flow systems may not be viable or efficient for longer runs of absorption trenches due to the need for elevation changes. Therefore, a well-designed dosing system with alternating mechanisms is necessary to effectively manage the wastewater in extensive absorption systems.