Septic Wastewater Treatment Systems

Providing clean drinking water is not the only important provision to a household. Household sanitation is just as important. For rural and semi-rural properties,  Polymer transpiration septic systems are widely regarded as one of the best systems available for the disposal of waste-water in unsewered areas. With Mr Plumber, family health is protected by providing safe and efficient disposal of waste-water from kitchen sink, bathroom and shower, laundry tubs and septic system. Polymer Transpiration Channels are suitable for virtually every site and layout combination. Mr Plumber have vast experience in installation, specification and are able to design transpiration trenches to meet the needs of the waste-water system and to suit the condition of the soil and terrain.

Mr Plumber have partnered with Reln Plastics to provide a complete blackwater, greywater and sewerage solution.

Why Reln?

  • Reln has the complete system to dispose of domestic waste water as required by AS/NZS1547
  • Reln’s innovation pioneered modern developments in septic effluent disposal with Australia’s original plastic effluent drainage trench and in 1990 with the introduction of Australia’s first injection moulded plastic septic tank.
  • Reln septic tanks are manufactured to the requirements of AS/NZS1546.1

Grease Trap


For use in domestic effluent and blackwater disposal applications to reduce fats and oils entering septic tanks from kitchen sinks.

How it works ?

  • Grease traps are waste water separators that work on the principle that fats and oils are lighter than water – so they float
  • Baffles act to to separate and contain the fats and oils as the waste fuid flows into the grease trap and allow cleaner waste water to flow to the septic tank
  • Grease Traps must be cleaned regularly by a grease trap cleaner.

Septic and Holding Tanks

Reln’s range of purpose designed black water and septic tanks are build to withstand the harsh Australian conditions and strong enough to handle any type of soil, no matter how reactive.

What is a Septic Tank?

Septic tanks provide onsite sewage disposal for homes on urban fringe, and in rural and remote locations currently not connected to town sewer. Wastewater flows from the toilet, bathroom, laundry and kitchen. Fats, oils and liquids are then separated as the sewerage settles. Septic tanks do their work using naturally forming bacteria to consume the effluent. This leaves behind a liquid that is the sent to the transpiration trench to evaporate or transpire through plants.

Transpiration Trenching


Unlike traditional septic trenches that are usually filled with rubble and crushed rock, transpiration trenches provide a completely free moving path for waste water to move into and transpire or absorb in to the natural ground.

Transpiration channels are suitable for virtually every site and layout combination. Transpiration trenches come in three different sizes and can be connected to more trench kits dependant on factors like volume of waste-water, household size and applications, the absorption capacity of the surrounding soil and limitations imposed by site conditions, such as slope, contours and space

Standard Service Areas

Barellan Point
Chapel Hill
Fig Tree Pocket
Indooroopilly Centre
Jamboree Heights
Karana Downs
Kenmore East
Kenmore Hills
Lake Manchester
Middle Park
Mount Coot-tha
Mount Crosby
Mount Ommaney
North Tivoli
Pinjarra Hills
Sinnamon Park
The Gap
Upper Brookfield