The partially treated liquid wastewater that flows from the septic tank to the drain field.

Drains effluent water evening into the ground to be cleaned by the soil

Baffles are flow-restricting devices in septic tanks and distribution boxes. They prevent the outflow of sludge and scum from the septic tank into the drain field. They also serve to reduce the velocity of effluent coming from the septic tank.

Distribution Box/D Box

The distribution box, also known as a D-box, distributes liquid effluent that flows from the septic tank to the drain field.

Fats, oil, and grease that is a component of wastewater that forms a floating layer of scum in the septic tank.

Retention time is a measure of the amount of time in hours or days that effluent remains in the septic tank before flowing out to the absorption system.

Scum is less dense than water so lighter solids, greases, soaps, and oils float to the surface of the liquid effluent and form a scum layer.

A septic tank riser extends from the septic tank opening to the ground’s surface. This eliminates the need to dig through the ground to access the septic tank’s lid for inspections or repairs.

Heavier solids settle to the bottom of the septic tank and form a sludge layer. The sludge and scum layer are removed from the septic tank by periodic pumping services.

The combination of human and household waste with water that is discharged into the plumbing drain system.

Septic tanks are closed containers that retain household sewage to begin the decomposition process through bacterial action.

Percolation is the ability of the soil in a drain field to allow water to pass through.

Aerobic bacteria are bacteria that only exist in the presence of oxygen. They live in the soil around the drain field and are responsible for removing pathogens and other biological materials coming from the septic tank.

Washed stone that is clean and measures between 2 inches and 1.25 inches.

4 inch pipe that is used for the leach field in a septic system.

4 inch Schedule 40 PVC

Hard strong pipe used between the house and septic tank and generally between tank and distribution box.

The term also applies to bacteria that live without oxygen and anaerobic digestion, a process used to break down organic waste into biogas.

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Septic System

Vocab 1

Term	Definition
Effluent	The partially treated liquid wastewater that flows from the septic tank to the drain field.
Drain Field	Drains effluent water evening into the ground to be cleaned by the soil
Baffles	Baffles are flow-restricting devices in septic tanks and distribution boxes. They prevent the outflow of sludge and scum from the septic tank into the drain field. They also serve to reduce the velocity of effluent coming from the septic tank.
Distribution Box/D Box	The distribution box, also known as a D-box, distributes liquid effluent that flows from the septic tank to the drain field.
FOG	Fats, oil, and grease that is a component of wastewater that forms a floating layer of scum in the septic tank.
Retention Time	Retention time is a measure of the amount of time in hours or days that effluent remains in the septic tank before flowing out to the absorption system.
Scum	Scum is less dense than water so lighter solids, greases, soaps, and oils float to the surface of the liquid effluent and form a scum layer.
Septic Tank Riser	A septic tank riser extends from the septic tank opening to the ground’s surface. This eliminates the need to dig through the ground to access the septic tank’s lid for inspections or repairs.
Sludge	Heavier solids settle to the bottom of the septic tank and form a sludge layer. The sludge and scum layer are removed from the septic tank by periodic pumping services.
Sewage	The combination of human and household waste with water that is discharged into the plumbing drain system.
Septic Tank	Septic tanks are closed containers that retain household sewage to begin the decomposition process through bacterial action.
Percolation	Percolation is the ability of the soil in a drain field to allow water to pass through.
Aerobic	Aerobic bacteria are bacteria that only exist in the presence of oxygen. They live in the soil around the drain field and are responsible for removing pathogens and other biological materials coming from the septic tank.
#2 Stone	Washed stone that is clean and measures between 2 inches and 1.25 inches.
4 inch Drain Pipe	4 inch pipe that is used for the leach field in a septic system.
4 inch Schedule 40 PVC	Hard strong pipe used between the house and septic tank and generally between tank and distribution box.
Anaerobic	The term also applies to bacteria that live without oxygen and anaerobic digestion, a process used to break down organic waste into biogas.

Created by: tbeaver24

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