Absorption Septic System

· Trenches or Bed

· Distribution Piping

· Gravity-Flow from Septic

· Porosity - a "place holder"

· Helps Distribution

· Treatment Function?

· Fine sediment on stone causes soil clogging

· Hydraulic Distribution

· Disperses Effluent into Soil for Treatment

 Goal is Uniform Distribution

· Uniform Distribution Between Lines

· Uniform Along Lines in Trench or Bed

 Types of Gravity Distribution 

· Manifold (header)

· Distribution Box

 Older Systems

· Clay or Concrete

· Bituminous or "Orangeburg"