Septic System Trench
In the typical absorption field, each length of leach line or leaching chamber is set in its own individual trench. This results in an absorption field consisting of a series of parallel trenches that are about 18" to 30" deep. Because the aerobic bacteria that decompose waste thrive mostly in this upper area of the soil, this type of system provides the most thorough treatment of wastewater. It also helps protect ground water from possible contamination by affording the greatest possible separation distance between trench bottom and the water table.
Occasionally, however, space limitations may require different approaches. If soil and ground water conditions permit, seepage pits are an option. Another alternative is a stone bed where all the leach line is laid in a single, wide trench with stone aggregate.
All absorption areas, regardless of type, are subject to the same aging processes. In every case, a biomat forms on the trench walls. Initially this biomat aids wastewater treatment by straining out pathogenic bacteria.
As more bacteria and waste add to the biomat, the trench walls become more impervious to the passage of wastewater. Siltation and soil compaction can further slow the absorption rate. Eventually, wastewater might either back up into house drainage plumbing or seep out onto the ground surface.
Previous Article : Septic Leaching - - Next Article : Septic Chamber
-
Providing Quality Service...Guaranteed In the Greater Austin Area of Travis, Hays, Williamson, Burnet, & Bastrop Counties
, Hudson Bend, Rollingwood, Manor, Bear Creek, Driftwood, San Marcos, Coupland, Weir, Thrall, Misc Locations, Bell County.
Call (512) 338-1804 for fast, dependable service.
-
Improved Efficiency - Public And Private (Rare story: A public agency and private company work together to improve efficiency for themselves AND their customers.) Background: Since the State-wide change in...
-
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...
-
Why Stay On A Septic System? Top 5 Reasons for Preserving Onsite as a Viable, Even Preferred, Sewage Management Option: Better protection of public health is possible ...
-
Installing Septics There two basic types of septic systems: a conventional system that consists of a tank with a drain...
-
Septic Tank Cleaners SOS has recently added Pumping & Cleaning Services. The SOS difference: Our BRAND NEW truck is low...
-
Septic System Filters There are several versions of septic and other types of wastewater filters and the most basic septic effluent...
-
Septic System Leach Although the failure may be caused by the septic tank, usually it is the leach field which fails....
-
Drip Septic Systems Drip fields on a slope must be designed and installed to prevent drain-back. Otherwise, the lowest part of...