True or False: A gravelless seepage system must have separation material placed before backfill.

A gravelless seepage system is designed to handle effluent without requiring traditional gravel, which can help in reducing weight and the volume of material that needs to be transported and installed. However, the design of these systems often incorporates specific configurations for effective functioning, including the type of separation material used.

In a gravelless system, it is generally unnecessary to have separation material placed before backfill, as the intended design allows for the proper dispersal of effluent through the system without this additional layer. The materials used in these systems are specifically engineered to provide adequate permeability without requiring gravel or a separate separation layer.

Understanding the characteristics of gravelless systems as well as the standards set forth in regulations is essential for proper installation. Local regulations may outline specific requirements, but the general principle for gravelless systems points towards no mandatory separation material being required before backfilling them. Therefore, that reasoning supports the assertion that it is false to state that a gravelless seepage system must have separation material placed before backfill.