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.
-
Pumping Frequencies The table below provides an estimate of pumping frequency in years, based on the size of the first tank in gallons, and the number of...
-
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...
-
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 Aerator Electrical shock is another hazard that can be encountered when working around aerators, alarms, pumps and other...
-
Septic Tanks Installation In general, homeowners are not advised of their options and the pros and cons of each. They are...
-
Seller Says "Too Bad" Seller Says “Too Bad” After Homebuyers Find Rotting Septic Tank Under Plywood (From Pumper Magazine, October 23, 2018)...
-
Septic Tank Diagram Let's start off by clearing some misconceptions. If your house is on a septic system installed in...
-
Septic System Problem People seeking services from a maintenance service provider desire proper service for a fair price, but they often...