What do the letters "DST" stand for in septic system terminology?

In septic system terminology, "DST" stands for Drip Subsurface Transport. This term is specifically related to a type of wastewater treatment method where effluent is dispersed into the soil through a network of small-diameter pipes that deliver the water directly beneath the surface. This method helps promote effective treatment by using soil to further filter and break down contaminants in the wastewater, allowing for better absorption and minimizing surface runoff.

Drip Subsurface Transport systems are particularly advantageous in areas with limited space or where traditional septic systems might not be feasible due to site constraints. The controlled nature of the effluent delivery enables more efficient use of the available soil and fosters a more conducive environment for microbial activity, which is essential for the treatment process. This is why "DST" is closely associated with advanced septic system designs aimed at enhancing performance and sustainability.