Septic Tanks, Systems & Percolation - One of the items that RE-Land assist buyers with during a Study Period
RE-Land - Septic Tanks and Systems - Percolation ExplainedSeptic Tank Systems are used in many areas of Northern Virginia where public sewers are not available. When properly maintained, a Septic Tank System can be expected to have a long and trouble-free service life. Abuse or neglect may cause a system to malfunction, making costly repairs necessary and creating health hazards.A Septic Tank System consists of a septic tank and a subsurface absorption system. The septic tank receives household wastes from sinks, showers, and commodes, washing machines and dishwashers. In the tank, Solids settle to the bottom, where they are broken down and digested by bacteria. Grease and Scum float to the top. The remaining liquid, still highly polluted, enters the subsurface absorption system where it is filtered by the soil and purified by natural processes. Before a lot or land that will utilize a Septic Tank System can be built upon, it must pass what is called a Percolation Test. A Percolation Test measures the ability of the soil to support the subsurface absorption system. Basically, holes are bored in several spots on the area being tested. Controlled amounts of liquid are poured into the holes and the absorption rate of each area is measured. If the required absorption rates are not observed then the land is said to have "failed the perc test" and may be unable to support building utilizing a Septic Tank System. Commercial septic tank additives are not necessary and are usually not recommended. Accumulated solids in the bottom of the septic tank and distribution box should be pumped out every 3 to 5 years. Records should be kept by the homeowner to show dates of service. The company performing cleaning or repair services must be licensed in most counties.
SEPTIC TANK Must be pumped and cleaned of sludge every three to five years to avoid damage to subsurface absorption area.
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