Inlet and outlet tees must be at least how many inches deep?

The correct depth for inlet and outlet tees in a septic system is 25 inches. This measurement is crucial for several reasons. Firstly, a depth of 25 inches ensures that the tees are adequately submerged in the wastewater, promoting proper flow and reducing the chances of clogging from floating solids. Additionally, this depth helps to maintain the integrity of the system by minimizing the risk of the tees becoming exposed, which could lead to improper operation and potential environmental contamination.

Having the tees at the right depth also aids in the proper separation of solids and liquids within the tank, ensuring that only clarified liquid effluent moves towards the drain field. Therefore, adhering to this specific measurement is vital for the effective and safe operation of a commercial septic system.