The simplest of septic systems, the conventional ‘standard’ system uses gravity to direct the flow of wastewater. Sewage flows from the dwelling into a septic tank. After primary treatment in the tank, the wastewater flows into disposal trenches for final treatment and dissipation into the soil. These trenches can be filled with clean drainrock or a chamber-type dispersal unit. In some instances, a capping fill is required for conventional systems. This blanket of soil cover is spread over the disposal field to mitigate shallow native soils and provide protection for the disposal trenches.
Maintenance operations for a conventional system consists mainly of pumping the septic tank (we recommend once every 3-4 years) and maintaining the soil cover over the disposal field to prevent surface water (stormwater) from traversing and/or ponding on top of the system. Maintenance is important to prolonging the life of the system and should be done on a regular basis.