Rainwater tank

Rainwater tanks help reduce the amount of water that leaves a property. They also support people to use less drinking water by collecting rain for uses like watering gardens or flushing toilets.

Wetlands

Constructed wetlands are built to look natural and fit into the landscape. They slow down stormwater during heavy rain, clean the water by filtering out pollution and fine particles, and provide green spaces for people to enjoy.

Gross pollutant traps

Gross pollutant traps (GPTs) trap rubbish like plastic and litter, and sediment pieces over 5mm, to prevent it washing into rivers, lakes and oceans. This helps to make it easier to treat stormwater downstream. There are many types of GPTs, but they all perform a similar function.

Swales

Swales are shallow channels that carry stormwater across a site. They are usually planted and / or grassed. As water flows through, the grass and other plants help to slow it down and absorb excess nutrients. Swales can trap small pollutants like sediment and litter which helps to clean the water before it reaches creeks, rivers or the ocean. They also provide greenery and support local biodiversity.

Raingardens

Raingardens can be built on private land or street verges. They direct water from stormwater pipes or rainwater tanks into specially designed garden beds. As water moves through the raingarden, plants and soil absorb and filter pollutants.

This process improves water quality before it enters the stormwater system, reduces the need for extra watering, and helps keep plants healthy. Raingardens also cut down on potable water use and make the site more sustainable.