Septic System And Leach Field

A septic drain field a septic tank and associated piping compose a septic system.

Septic system and leach field.

The gravel stone drainfield is a design that has existed for decades. Septic drain fields also called leach fields or leach drains are subsurface wastewater disposal facilities used to remove contaminants and impurities from the liquid that emerges after anaerobic digestion in a septic tank organic materials in the liquid are catabolized by a microbial ecosystem. The construction details including the layout of all sewers outside of the home the location and depth of all tanks the routing and depth of pressurized effluent lines and other system parts such as the drain field and any additional atus must match the septic system plans as approved by the local county health department. Unfortunately drain fields also known as leach fields do not last that long.

If placed in an area with good ground absorption a drain field can last up to 10 years. Your septic system site plan is typically drawn right on top of your property survey showing the septic tank setbacks with tank 5 10 feet from the house the leach field at least 20 feet from the house at least 100 feet away from wells and streams 25 feet away from dry gulches and 10 feet away from the property lines. Septic sewer drain fields or leach lines are built with unsaturated paper piping and gravel. Building a septic drain field is time consuming but pays off in the long run.

The average cost to install a septic system drain or leach field is between 2 000 to 10 000. The fields are excavated and 4 pvc pipe is laid in 3 deep by 1 wide trenches after which it s backfilled and excess soil is disposed of properly. With this design effluent is piped from the septic tank to a shallow underground trench of stone or gravel. Soil based systems discharge the liquid known as effluent from the septic tank into a series of perforated pipes buried in a leach field chambers or other special units designed to slowly release the effluent into the soil.

The system consists of a large septic tank drainfield also called a leach field the network of perforated pipes that spread out from the septic tank and release out the filtered. The leach field is the final destination of water released from your toilets and drains and when the system is functioning as it should the water percolates into the soil and disperses. Septic drainfields also called leach fields absorption beds soil absorption systems soakaway beds and leaching beds perform the functions of septic effluent treatment and disposal in onsite wastewater treatment systems conventionally called septic systems.