What is the maximum depth extension of the tees in the liquid depth of the tank?

The maximum depth extension of the tees in the liquid depth of the tank is set at 50% for several reasons. Having the tee extend to this depth allows for optimal flow and distribution of wastewater throughout the system. When tees, also known as lateral outlets or connections, are positioned within the tank, their depth determines how effectively the effluent is drawn from various levels of the liquid.

Extending the tees to 50% ensures that they can effectively capture and drain wastewater while also preventing the system from drawing in excess solids or sludge, which typically settle at the bottom. This balance is crucial for maintaining efficient system operation, minimizing maintenance needs, and optimizing treatment processes.

Positioning the tees deeper than 50% could increase the risk of collecting undesired solids along with the effluent, which could lead to clogs and reduced system efficiency. Conversely, setting them at a shallower depth might risk insufficient wastewater flow, impacting the overall functionality of the septic system. Hence, the guideline of extending the tees to a maximum of 50% of the liquid depth is established to ensure efficacy and longevity of the system.