Photo Descriptions

  1. Septic tank (featured image)
  2. Lowering the tank into position
  3. In-ground installation

Our Septic Tank in 60 seconds

In-Ground Septic Tank

A sturdy 3,000 litre septic tank for in-ground installation. Moulded one piece construction. Comes complete with fittings. If you want a certified, approved and locally manufactured septic tank, give us a call today!


  • Product Code: ST3
  • Capacity: 3,000 Litres (660 Gallons)
  • Height: 1790mm
  • Diameter: Top - 1920mm | Base - 1540mm
  • Weight: 150kg


  • Northern Territory Government Department of Health approved 3000L septic tank
  • Product Approval Number 01/16
  • Complies to AS/NZ 1546.1.2008 standard
  • Quality tested for thickness and strength
  • Environmentally safe - no risk of contamination to the environment
  • Easy to service
  • Stepped ribbed one piece design (no separate lid) for added strength and durability
  • Anchor points to stop uplift
  • Built tough to retain structural integrity
  • Ready to install


  • Black


  • Fitted with PVC “inlet” and “outlet” piping assemblies as standard.
  • The “inlet” assembly is located on the tank wall directly beneath the inspection manhole opening. It is fitted with a 300 mm extension pipe.
  • The “outlet” assembly is located on the tank wall on the opposite side to the inlet, and is slightly lower. It is fitted with a 500mm extension pipe.
  • The extension pipes connected to the inlet and outlet “T” connections must point directly to the bottom of the tank.
  • Tanks can be purchased without standard fittings.

Optional extras

  • Leach Drain Kits