What is Stormwater Drainage?

Stormwater is the rainwater that mixes with organic matter, soil, fertiliser, and other garden debris. Stormwater is generated by the rain runoff from roads, roofs and other structures. As it flows down impervious structures like roads, rooftops, it collects pollutants and debris which makes its way through storm drains to our lakes, rivers and oceans untreated. It is not surprising to have blocked stormwater drains especially during the storm seasons. In this article, we will discuss the stormwater drainge and tips to maintain the stormwater drains to eliminate disastrous plumbing problems in the future.

How does stormwater drainage work?

Stormwater drainage is a network of structures used to transport stormwater to water bodies.

The rainwater flows down the roofs into the downpipes and is collected in the stormwater discharge drains which are used to trap the rainwater run-off. Stormwater drains need to be maintained properly as poorly managed stormwater drains can cause soil erosion and pollute the water bodies.

Who is responsible to maintain the stormwater drains?

Property owners are responsible to manage the stormwater drains throughout their property. This includes maintaining:

• Drains
• Downpipes
• Gutters
• Rubble pits or other lawful points of discharge
• Interallotment drainage

Tips to manage stormwater runoff

Stormwater is not treated. It carries the rainwater directly to lakes, ponds, creeks and ultimately the ocean. It is important to take care of the stormwater infrastructure to prevent water pollution. Some ways to maintain stormwater drains include:

• Limit the use of fertilisers, pesticides, and other chemicals.
• Keep your garden clean and remove leaves, tree branches, and other debris so they do not flow down the drain when it rains.
• Get your stormwater drains inspected annually so any clogs can be removed well before storms arrive.
• Harvesting stormwater can save water and reduce environmental pollution. Stormwater can be collected with the help of rainwater tanks. This water can be used in the laundry, toilets, and for gardening.
• Keep your plants and trees well-maintained as they decrease surface run-off, capture sediments, and bind the soil.
• Create a rain garden to reduce the stormwater run-off and also irrigate the garden.
• Maintain your stormwater infrastructure by getting the stormwater drains inspected at least once a year by a drainage professional. The drains can get blocked by leaves, sticks, rocks and other garden debris which can lead to a plumbing disaster when it rains so make sure your drains are in the best shape.
• Check your roofs, gutters, and downpipes regularly. If there is any water leaks or damage contact your local plumber.

Difference between sewer and stormwater drainage?

The drains in your home, such as those from sinks, toilets and showers, are a part of the sewage system. The sewer drains are used to carry away the wastewater from your home. The wastewater is transported to the municipal treatment plant where it is treated.

However, stormwater drains are used to direct the rainwater directly to the nearby waterways, and it is not treated.

Need help with your stormwater drains?

If you need maintenance for your stormwater drains in Sydney, give our drainage specialists a call on 02 9191 7374 or complete our online enquiry form.