Yarra Valley Water


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Sewerage blockages

There are a number of items that are a common cause of sewer blockages or equipment failure at sewage treatment plants.

Many objects and materials that shouldn’t enter our sewerage system can clog your sinks and drains, causing expensive blockages. They can also damage the system which protects our creeks, rivers and oceans.

Fats and oils

Fats and oils clog more than your arteries. They can damage the pipes within your property and cause blockages, which are often costly to repair.

To help prevent this, wipe pots and pans with a paper towel before washing or let fats and oils cool and solidify before disposing of in the rubbish or on your compost heap.

Non-biodegradable objects

If disposed down sinks or toilets, many of the below items may jam pumping equipment and harm the treatment process at our sewage treatment plants.

  • Personal hygiene products, cotton buds or tips
  • Cleaning cloths
  • Nappies, nappy liners, sanitary products, baby wipes, children's underwear
  • Children's toys

Hazardous chemicals

Many household products contain chemical ingredients that can cause damage if disposed of into the sewerage system.

  • Medicines and pills
  • Hazardous chemicals, paints and motor oil

If poured or flushed down the drain, they harm the treatment process and the environment. Ask your local pharmacy or council for advice on how to dispose of items, including:

  • Unwanted medicines and pills
  • Paint
  • Motor oil
  • Pesticides