A drain field distributes the effluent water from a septic tank to the soil, allowing natural purification before it returns to the water tables. Its components include a distribution box, gravel and perforated PVC pipe. It may take days or weeks to complete the process of obtaining permits, digging suitable trenches, laying pipe, installing gravel and backfilling the trench./
In most locations, installation of a drain field requires a permit. Building codes often require that a licensed contractor design and install the drain field, and a soil percolation test to determine the rate at which the soil is able to absorb water.
The design of the system determines the depth and length of the lines. One common design uses three lateral lines, each 100 feet in length and connected to the distribution box. While it is possible to dig these trenches by hand, most owners hire a contractor to dig these trenches.
Check the codes for the size and depth of gravel required. The depth typically ranges from 6 to 12 inches, and the gravel should be larger than the perforations in the pipe. At this point, work often stops, awaiting approval by an inspector. If the system passes inspection, install another 6 to 12 inches of gravel over the pipe.
Fill the trench with soil removed earlier. Plant grass over the drain field to prevent erosion. Do not plant other landscaping over the area.
Some common septic tank drain field repairs include removing clogs and odors. Another common repair is breaking down grease after a buildup causes clogs in the septic line.Full Answer >
Know how to properly care for a septic system by knowing when to pump a septic tank, how to manage the drainfield and household water usage, and what items should never go down the drain. Managing the septic system well should avoid costly repairs, but always maintain an area that could accommodate a new septic tank drainfield in case the system fails.Full Answer >
Septic systems work by separating solids from liquids in the septic tank and allowing the liquids to pass into the drain field where the soil purifies the water. Some of the solid materials in the septic tank break down by bacterial action, but others require pumping for removal.Full Answer >
Septic drain fields and leach fields are two different names that both refer to the series of drain lines that percolate the waste water from the septic tank. Septic tanks are commonly used in rural areas in place of city sewage systems.Full Answer >