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Poly Septic Tanks

When seeking cost effective solutions for handling household septic and waste water, these poly septic tanks are a robust solution for areas without city sewage systems. Certified for NSW, VIC, SA, QLD and NT and compliant to Certified for AS/NZS 1546.1.

Polymaster Septic Tanks

The Polymaster 3100 and 4550 litre underground septic tanks are incredibly robust and easy to install. They comply with the strict standards of AS/NZS 1546.1 certification and are EPA approved.
  • 10 year warranty.
  • Self anchoring.
  • High grade industrial polyethylene tank.
  • Lightweight and easy to handle.
  • 100mm inlet and outlet.
  • Low profile design to reduce excavation, digging and back fill.
  • Heavy duty strong lid tested to 500kg loading.
ADDITIONAL OPTIONS
  • 500mm riser for deeper installations.
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  • 3100 Litres

    $2,700
    Dimensions
    247 x 164 x 170 cm
    Show Details
  • 4550 Litres

    $3,900
    Dimensions
    352 x 164 x 170 cm
    Show Details

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More about our Poly Septic Tanks

What are poly septic tanks used for?

Poly septic tanks are used to manage household sewage and wastewater in areas without access to mains sewer systems. They’re a practical solution for rural and semi-rural properties, helping with safe wastewater disposal while supporting environmental safety.

Why choose poly septic tanks over concrete or steel?

Poly septic tanks are lightweight, durable, and resistant to rust and corrosion. Unlike concrete or steel tanks, they won’t crack or degrade as easily over time. This makes them a reliable, long term option for wastewater management in Australian conditions.

What sizes are available?

We offer poly septic tanks in practical household sizes, including:

These sizes suit a range of residential needs depending on household size and water usage.

What features do poly septic tanks come with?

Our poly septic tanks are designed for strength, ease of installation, and long-term performance:

  • Made from high grade polyethylene for durability
  • Low profile design to reduce excavation and improve stability
  • One piece construction to minimise leaks
  • Pre assembled for quicker installation
  • Backed by a 10 year warranty

Are these septic tanks certified?

Yes. Our poly septic tanks are manufactured to meet AS/NZS 1546.1 standards and are certified for use across multiple Australian states. This ensures they meet strict requirements for safety, performance, and environmental compliance.

How do poly septic tanks support environmental safety?

Poly septic tanks use natural bacterial processes to break down waste. The treated wastewater is then dispersed into the soil, where it is further filtered naturally. This helps reduce environmental impact and supports safe wastewater management when used correctly.

What should you avoid putting into a septic system?

To keep your septic system working properly, avoid substances that can harm the natural bacteria, such as:

  • Chlorine or ammonia-based cleaners
  • Oils, fats, and grease
  • Non-biodegradable items
  • Chemicals like fuel, paint, or solvents
  • Excess food waste

This helps maintain system efficiency and lifespan.

How easy are they to install?

Poly septic tanks are easier to handle compared to concrete tanks. Their lighter weight and low profile design reduce the need for heavy equipment and extensive excavation. Being pre-assembled also helps speed up installation on site.

Why choose poly septic tanks from Bushfire Store?

We supply poly septic tanks built for Australian conditions, designed for reliable performance and long-term use. Whether you’re installing a new system or upgrading an existing one, we can help you find a suitable solution for your property.

Need a hand?

Not sure which poly septic tank suits your property or local requirements? Contact us HERE and we’ll help you choose the right setup.

Explore our full Chemical Tanks & Equipment range for tanks, rinse bins, septic tanks, and more.

What People Are Saying

Very happy, strong quality fire swatter and fast delivery. Will be buying form Bush Fire Store again

- Dave and Dianne Morrisey

Brilliant service. Items arrived on time and as advertised. Great job.

- Warick Birch
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