Septic Effluent

The septic tank effluent is allowed to flow to the drainfield by gravity or is dosed by pump or siphon. The effluent enters the soil and is treated as it percolates to the groundwater.

The soil acts as biological filter to remove nearly all harmful substances including disease-causing bacteria and viruses, toxic organics and other undesirable wastewater constituents remaining in the septic tank effluent.

In addition to acting as a sedimentation chamber and providing storage for the sludge and scum, the septic tank also digests or breaks down the waste solids. Micro-organisms that thrive without oxygen feed on the solids to reduce the volume of sludge and scum.

In the process, carbon dioxide, hydrogen sulfide and other gases are produced which must be vented from the tank through the plumbing vent on the roof.

Only about 40% of the sludge and scum volume can be reduced in this manner, so the tank must be pumped regularly to remove the accumulated solids. If not done, the tank will fill with sludge and the solids will be washed out into the drainfield where they will quickly clog the soil.



Previous Article : Failure Septic System - - Next Article : Find Septic System

Featured Articles
Providing Quality Service...Guaranteed In the Greater Austin Area of Travis, Hays, Williamson, Burnet, & Bastrop Counties , Hudson Bend, Wells Branch, Shady Hollow, Buda, Driftwood, San Marcos, Bartlett, Cedar Park, Georgetown, Misc Locations, Bell County.
Call (512) 338-1804 for fast, dependable service.
Aerobic Treatment Unit First, please understand that the State has clearly stated it is the owner's responsibility to operate the aerobic treatment unit in compliance with all regulations...
Unhappy With Your Septic System? Why do so many customers end up dissatisfied with their septic systems? We feel it starts with nobody asking or even considering the owner's opinion before...
Septic Tank Additives There are many companies promoting their septic tank additives, saying they can solve all of your septic woes. For over 15 years, these claims have...
  • Septic Diagram Septic tanks are installed to allow solids to settle out of sewage and hold these solids in the...
  • Septic System Trench In the typical absorption field, each length of leach line or leaching chamber is set in its own...
  • Local Septic System Problems in Texas On-Site Industry: (The...
  • Septic Tank Additives There are many companies promoting their septic tank additives, saying they can solve all of your septic woes....
  • Septic Cesspool The cesspool is considered outdated today. Its principal advantage lies in the fact that it is a simple...