Q:

How do you install a drain field?

A:

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./

  1. Obtain proper permits

    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.

  2. Dig trenches

    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.

  3. Install gravel

    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.

  4. Backfill the trench

    Fill the trench with soil removed earlier. Plant grass over the drain field to prevent erosion. Do not plant other landscaping over the area.


Is this answer helpful?

Similar Questions

  • Q:

    How does a septic system work?

    A:

    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 >
    Filed Under:
  • Q:

    How much does it cost to install a septic system?

    A:

    The national average cost for installing a septic tank in the United States is approximately $4,000 to $6,000 according to homeadvisor.com. These costs vary greatly in both directions depending on location and the size of the tank. The type of system being installed can also affect the price along with the type of property it is located on.

    Full Answer >
    Filed Under:
  • Q:

    What is the best toilet paper for septic tanks?

    A:

    For the fastest and most complete breakdown of toilet paper in the septic tank, single-ply toilet paper is best. Regular toilet paper is acceptable as well; there is no evidence that any type of toilet paper harms septic tanks or drainfields.

    Full Answer >
    Filed Under:
  • Q:

    What is a common septic tank pumping frequency?

    A:

    The average time period for pumping a septic tank is about one to four years between cleanings. Septic tank pumping frequency depends on the size of the tank, the waste-water volume, and the solids content based on the number of people using the septic system, explains North Carolina State University.

    Full Answer >
    Filed Under:

Explore