What is one requirement for the installation of a gravelless seepage system regarding extraneous materials?

The requirement for the installation of a gravelless seepage system that states it must be free of demolition materials is essential for ensuring the system's effectiveness and longevity. Demolition materials can introduce harmful contaminants and inefficiencies into the septic system, obstructing proper drainage and infiltration of wastewater. They can also pose structural problems that may hinder the performance of the system over time.

In maintaining a clean and functional environment within the septic system, avoiding extraneous or foreign materials is crucial. This ensures that the biofilter can operate as intended, allowing for the appropriate treatment and dispersal of effluent. By adhering to this requirement, installers can enhance the reliability and functionality of the gravelless seepage system, ensuring it meets health and safety standards.