Gravelless System

A gravelless system is an onsite wastewater treatment system that does not use gravel in its drainfield trenches or beds. Instead, these systems may use alternative materials such as tire chips, plastic, glass, expanded clay, shale or polystyrene foam chips, etc. Gravelless systems offer advantages over traditional gravel systems (including the recycling of waste materials, lower installation costs and better absorption). Chamber Systems are a popular type of gravelless system that use high-absorption, open-bottomed chambers in place of pipe. <