... sewage treatment systems and septictanks; water saving devices such as pressure reducing valves
and 6/3 dual flush toilet systems; solar hot water. ... www.homeimprovementpages.com.au/article/green_plumbing
... Such systems may include wetlands, intermittent sand filters, soil filters, grey water septictanks,
and aerated waste water treatment systems. ... www.homeimprovementpages.com.au/article/Using_Grey_Water_in_the_Home
... The most common treatment systems in Australia are the septic tank, aerated/aerobic ... Treatments
can include rain water tanks plumbed to the toilet, rain gardens ... www.homeimprovementpages.com.au/article/Water