Conv Septic Systems in NC with Verified Solutions
What are the four main components of a septic system?
Collection lines, septic tank, distribution system, and drain field
Collection lines are based on ASTM standards in accordance with what set of rules?
NC Plumbing Code
What is the required scour velocity for a half-full sewer pipe? For a full pipe?
Half-full: 2 ft/s, full: 1 ft/s
What is the fall required for raw sewage?
1/8 inch per foot
For four-inch sewers, cleanouts are required at least every ___ feet and at all
_______________.
50, bends and junctions > 45 degrees
What three factors influence biological activity in a septic tank?
Composition of wastewater, flow quantity and variability, temperature
What is the purpose of a septic tank (3)?
Primary treatment (solids removal), secondary treatment (some anaerobic decomposition), and
storage of accumulated solids
True/False: NCGS requires the use of effluent filters.
True
What are the four main components of a septic system?
Collection lines, septic tank, distribution system, and drain field
Collection lines are based on ASTM standards in accordance with what set of rules?
NC Plumbing Code
What is the required scour velocity for a half-full sewer pipe? For a full pipe?
Half-full: 2 ft/s, full: 1 ft/s
What is the fall required for raw sewage?
1/8 inch per foot
For four-inch sewers, cleanouts are required at least every ___ feet and at all
_______________.
50, bends and junctions > 45 degrees
What three factors influence biological activity in a septic tank?
Composition of wastewater, flow quantity and variability, temperature
What is the purpose of a septic tank (3)?
Primary treatment (solids removal), secondary treatment (some anaerobic decomposition), and
storage of accumulated solids
True/False: NCGS requires the use of effluent filters.
True
