Poly Septic Tanks, Leach Drains and Infiltration Tunnels

Poly Septic Tanks, Leach Drains and Infiltration Tunnels are great alternatives to concrete systems.. Lightweight and easy to install.

For more information, contact one of our friendly staff

Poly Septic Tanks

Tank Master stocks and supplies a range of polyethylene septic tanks that are manufactured in Western Australia. Poly Septic Tanks are Lightweight, Easy to install, easy to transport and manufactured from UV-stabilised durable polyethylene. We provide a product that is stringently tested to comply with Australian Standards

Poly Septic Tanks feature an anti-Floatation ring and ribbing incorporated into the design. All tanks are fitted with connections and lids ready for use making them easy to install with either your new or existing building. The tanks are designed to integrate efficiently with your chosen leach drain system.

Poly Leach Drains

Leach Drain Systems from Tank Master are designed to integrate efficiently with our Septic Tank units although they can be used in almost any wastewater system.

Manufactured from strong, lightweight polypropylene, they are easy to install and are a cost-effective solution for effluent waste systems. Our Leach Drains are flat-packed for ease of transportation and can be delivered throughout Western Australia.

Tank Master Leach Drains are very flexible with a range of configurations. Whether it be a residential septic/leach drain system or a commercial/industrial installation, our leach drains meet strict industry regulations and standards.

Each Leach Drain kit below comes with the correct amount of Geo Textile for that Leach Drain. Additional Geo Textile is available to purchase here - Geo Textile

Download the Leach Drain Assembly Instructions (PDF, 260kb)

Leach Drains Assembly

Infiltration Tunnels

Infiltration Tunnels are a strong and durable leach drain solution for wastewater treatment systems (both primary and secondary). They are sometimes referred to as arch trench drains.

Infiltration Tunnels are designed to be used in private and rural areas using one or more modules and two endplates and can be extended to your required length.


The following PDF details the specifications of non-concrete Septic TanksLeach Drains, and Infiltration Tunnels approved for use in Western Australia for the on-site disposal of wastewater. The PDF only contains the products sold by Tank Master.