What must precede a pressure distribution system according to application standards?

A properly sized two-compartment septic tank is essential before a pressure distribution system because it effectively separates the solids and liquids in wastewater. This design enhances the treatment process by allowing for better solids settling and reducing the potential for clogging in the subsequent pressure distribution system.

In a two-compartment tank, the first compartment allows for heavier solids to settle at the bottom, while the second compartment provides additional treatment and clarification before the effluent is distributed. This ensures that the wastewater that enters the pressure distribution system is adequately treated and reduces the likelihood of system failure over time.

Proper sizing of the septic tank is critical as it ensures that it can handle the volume of wastewater generated by the household or facility, maintaining effective treatment and preventing overflow or backflow issues that could compromise the integrity of the entire septic system.