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Frequently asked questions

A. A conventional septic system has a tank (typically 1000 to 2000 gallons) and a leach field (perforated pipe buried shallow in an extended area).

A. Septic tanks may be made of concrete, fiberglass or a poly-fiber.

A. Experts disagree. A properly maintained septic system discharges treated effluent directly into the ground, where its close contact with soil results in additional purification. A central sewerage system discharges very large volumes of treated effluent into a body of water at one location.

A. In the United States, state and local jurisdictions typically regulate onsite wastewater treatment systems.

A. For situations where the ground permeability is not suitable for a traditional leach field a mound system may be needed.

A. In other situations where ground permeability is not suitable an ET system may be required. In such a system, all the effluent is contained to a small area and it either evaporates into the air or is used by plants and transpires out through their leaves.

A. When the pores of undisturbed soil surrounding the leach field clog, the effluent cannot seep into the ground.

A. A stinky area of wet, soggy soil, sometimes with visible water, may appear. Sewage may back up into the house and toilets may not flush properly.

A. Some last for several decades with proper care. Systems that are neglected or abused will not.