What is the minimum residual pressure required for systems with orifices measuring 3/16 inch or larger?

The minimum residual pressure required for systems with orifices measuring 3/16 inch or larger is established at 0.87 psi. This specification is crucial for ensuring that there is sufficient pressure for proper flow and operation within the septic system. A pressure of 0.87 psi allows the liquid to be effectively discharged through the orifices, preventing any issues such as blockages or inadequate drainage.

In septic systems, maintaining optimal pressure is critical to the functioning of various components, including pumps and distribution systems. Insufficient pressure could lead to inefficiencies or failures in the system, so adhering to this guideline ensures the design and operational integrity of the septic installation.