2157 Brevard Road Arden, NC 28704
(828) 654-7777
Septic System Construction
A
septic system is a convenient, cost efficient, and safe method for treating and
disposing of household wastewater. A septic system is comprised of three
main components; the septic tank, the drainfield, and the soil beneath the
drainfield, although some refer to the drainfield and underlying soil to be the
soil absorption field.
The septic tank, a watertight container, separates
the solids from the wastewater, allowing solids to settle to the bottom of the
tank and the more floatable solids (oils & grease) to rise to the top.
Nearly half the solids that remain in the tank
decompose, while the rest build up in the bottom of the tank. This
"sludge" at the bottom of the tank needs to be flushed periodically in order for
the septic system to continue to function properly.
The drainfield, consisting of pipe and gravel, are installed as trenches in the soil. It is in the drainfield where the wastewater is transported to the soil. The organisms, that live in the soil beneath the drainfield, then purify the wastewater before it gets absorbed into the ground below.
Many
times an additional filter is installed between the septic tank and the
drainfield, removing even more solids and preventing the absorption field from
becoming clogged, which would cause the
septic system to fail prematurely.
Prior to beginning any septic system construction,
North Carolina state law requires that the soil must be tested by the local
health department to make certain it is suitable for a septic system. This
evaluation ensures the soil is able to absorb and treat wastewater from the
home.
To properly maintain your septic system, you should know the location of the septic tank and the drainfield. Most times, the Health Department will have a copy of the septic system's location on file. The septic tank needs to be pumped periodically to ensure the septic system continues to treat the sewage efficiently.
Over time, sludge begins to accumulate in the
bottom of the septic tank, which means the wastewater spends less time in the
tank allowing more solids to escape into the drainfield. Without the
settling of waste in the tank, more sewage travels
directly
into the drainfield, with very little of that sewage being treated.
Fletcher Grading Contractors strictly adhere to North Carolina laws regulating the installation of septic systems, thereby providing their customers with the highest quality construction possible. As seen on the left, Fletcher Grading Contractors specialize in providing septic systems for very steep home sites or lots, and utilize large diameter pipes (LDP), which is required by the county.
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