Bush Billabongs Blog

Guides, tips and information about septic tanks for tiny homes, cabins, granny flats and off-grid builds in Australia.

March 2026

Do You Need a Septic Tank for a Tiny Home in Australia?

If your tiny home is not connected to mains sewer, you almost certainly need an onsite wastewater solution. Find out what size septic tank you need, council requirements, and costs.

March 2026

How Much Does a 1500L Septic Tank Cost in Australia?

Compare 1500L septic tank prices across Australia. From $850 at Bush Billabongs vs $1,200–$2,500 at traditional suppliers. Find out why there's such a price difference.