Hold Time in a Septic Tank

One of the most important functions of a septic tank is to hold wastewater for a period of time so that solids within the incoming wastewater can settle at the bottom of the tank in the sludge layer. This settling process, along with the consumption of organic waste by the bacterial environment within the septic tank, are crucial processes to maintaining drainfield permeability.

Septic System

According to the American Housing Survey for the United States (2007) and the US Census Bureau, there are over 26 million residential septic systems in use in the United States. For many years, the only option a homeowner had to fix a failed system was to replace the entire system, a costly option!