Commercial Septic System Installer Practice Exam 2026 - Free Septic System Installation Practice Questions and Study Guide

During siphon operation, the contents of the dosing tank are siphoned out to a lower level. This process relies on the principle of gravity and the hydraulic characteristics of the siphon system. When the siphon is initiated, a difference in gravitational potential between the two ends of the siphon creates a continuous flow of liquid from the higher point in the dosing tank to the lower discharge point.

This mechanism allows for efficient and consistent removal of wastewater without the need for mechanical pumps, relying instead on the siphon's design and the tank's configuration. Once the siphon operation begins, liquid is drawn from the tank until the liquid level drops to a point where the siphon can no longer maintain its flow, at which point the siphon ceases to operate. This ensures that the tank is effectively utilized in managing wastewater levels in the overall septic system.