Domestic Drain Systems

• Two Pipe System

  • Trapped Gully prevents smells from the drain rising up
  • Vent Pipe to ventilate drain
  • No trap required at the bottom of stack as its uninterrupted by a hopper along the stack

  A) Trap

  B) trap

  C) Hopper

  D) trap

  E) trapped gully

  F) toilet with integral trap

  G) vent pipe

  
• Single Stack System

  • 100mm soil branch(6m max. length with slope of 9mm per metre)

  A) Vent for stack

  B) Trap

  C) Trap

  D) Toilet with integrated trap

  E) Trap

  F) 100mm soil water branch

  
• Drains Connected To A Row Of Houses

  A) 100mm pipe 1:40 slope

  B) 100mm pipe 1:40 slope

  C) 150mm pipe 1:150 slope

  D) 150mm pipe 1:80 slope

  E) Inspection chambers

  F) 150mm pipe 1:80 slope

  G) Access Junction

  
• Septic Tank

  A) Topsoil

  B) Access over

  C) Vent

  D) Sludge

  E) liquid

  F) 100mm inlet pipe

  G) Scrum

  H) 100mm pipe to percolation area

  I) Temporary Water Line

  J) 150mm

  K) 180mm

  L) 2200-2500mm sludge space

  M) 1200mm tank height

  N) 75mm scrum

  O) 1000mm liquid

  P) 350mm

  Q) 200mm

  
• Constructed Wetland System

  • Uses Plant's natural filtering ability tp purify household wastewater
  • Environmentally sustainable
  • (1) Wastewater is directed into wetland and passes through plants
  • (2) Then releases into a Drainage Channel as Decontaminated Water

  A) Wastewater

  B) Cleaner Water

  
• Layout of Septic Tank, Distribution Box and Percolation Area

  A) Manhole

  B) 100mm pipe

  C) 100mm pipe

  D) Septic Tank

  E) 7m gap

  F) 10m distance between dwelling and percolation area

  G) Dwelling

  H) Percolation Area

  I) Vents

  J) 2m gap

  K) 18m length

  L) Distribution Box

  M) Manhole

  
• Mechanical Aeration System

  A) Aeration Compartment

  B) Air Drop Line

  C) Aire Diffuser

  D) Pretreatment Tank

  E) Tee Assembly

  F) Inlet

  G) Aerator

  H) Air Supply Line

  I) Alternative Aerator Location

  J) Outlet Assembly

  K) Clarifier

  L) Chlorinator

  M) Pump Tank