Best Laundry Detergent for Septic Systems Australia

In Australia, where the great outdoors is a part of our identity, it's vital that we make choices that respect the natural world around us. That's why we're about to delve into the best laundry detergent for septic systems Australia.

Stay tuned as we reveal our top pick and discuss the nitty-gritty of choosing the perfect detergent, how to use it responsibly, and advice on what to look for in detergents to keep your septic system running smoothly for years to come. 

What this article covers:

Best Laundry Detergent for Septic Tanks

Based on our observations, the best eco friendly laundry detergent Australia has to offer for your septic tank is our eco-friendly and high-quality laundry detergent sheets.

These sheets are specifically formulated to be biodegradable, ensuring they dissolve quickly and are safe for septic systems. Plus, they do not accumulate harmful residues that can disrupt the septic process.

With Activated Eco's laundry detergent sheets, you're not only choosing an effective cleaning solution but also supporting a product that's designed with the environment in mind. These sheets are free from parabens and bleach, making them a gentle yet powerful option for your laundry needs.

By choosing Activated Eco, consumers make a conscious decision to support a product that not only serves their household cleaning needs but also aligns with eco-friendly values.

The detergent sheets arrive in 100% compostable packaging, making them a zero-waste hero!

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Our sheets are also available in a fresh linen scent, a worthy mention when it comes to the best smelling laundry detergent. If you're looking for handy drying solutions, consider our wool dryer balls!

What to Look for in Laundry Detergent for Septic Systems

When looking for laundry detergents suitable for septic systems, it's crucial to consider several key factors to ensure the health of your septic system and the surrounding environment.

Septic Safe Label

Always choose laundry detergents labeled as “septic safe” or “safe for septic systems.” This label indicates that the detergent has been tested and verified as safe for use in septic systems, avoiding ingredients that could potentially harm your septic system​​.

Eco-Friendly Ingredients

Opt for detergents made from eco-friendly ingredients, such as plant-based surfactants, enzymes, and essential oils. These biodegradable components are gentle on the septic system.

It's also advisable to avoid detergents containing phosphates or artificial fragrances, as these can be detrimental to the septic system's health​​.

Concentrated Formula

Highly concentrated laundry detergents are recommended as they require less product per load and less water, which reduces waste and is more cost-effective. Concentrated detergents are also typically available in bulk sizes, offering better value and minimising the frequency of purchases​​.

How Many Loads a Day Are Safe for Septic Systems?

Determining how many laundry loads per day are safe for septic systems involves several factors. Generally, five loads per day is considered safe for most septic tanks, but this can vary based on septic tank size and other factors​​.

Our findings show that three key factors impact the number of safe daily laundry loads:

  • Septic tank size: Larger septic tanks can handle more laundry loads. Conversely, smaller tanks may require fewer loads to avoid overloading.

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  • Washing machine type: Newer washing machines are more water-efficient than older models. Similarly, front-loading machines use less water than top loaders, potentially allowing for more laundry loads per day without overloading the septic system.
  • Average water usage: The design and capacity of septic systems are based on typical household water usage. Overloading the septic tank with excessive water from too many laundry loads can reduce the system's efficiency and increase the risk of clogs and overflows​​.


When selecting the best laundry detergent for septic systems, it's crucial to choose products that are septic-safe, eco-friendly, and free from harsh chemicals. Being mindful of what goes into these systems is key to their longevity and efficiency.

Activated Eco's laundry detergent sheets are an excellent choice for those looking for an effective, eco-friendly laundry solution. They're biodegradable, safe for septic systems, and derived from natural ingredients.

Browse our online store for all your laundry needs and contribute to the health of your septic system and the well-being of the environment.

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