Tankworld Tasmania
3054 L Island Septic Tank
3054 L Island Septic Tank
A low-profile, Tasmanian-made polyethylene septic tank designed for domestic wastewater applications servicing approximately 1–5 people. Supplied with key components pre-assembled for a simpler installation.
- Low-profile design for reduced excavation
- Generally suited to applications servicing 1–5 people
- Strong, lightweight one-piece polyethylene construction
- Pre-assembled and ready for site installation
colour availability and lead time.
Is this septic tank right for your property?
The 3,054L Island Septic Tank is designed for smaller residential wastewater applications, but final tank selection should always match the approved wastewater design for your site.
3,054L Model
Generally suited to 1–5 people
The 3,054L Island Septic Tank is generally suited to smaller households and other low-volume residential wastewater applications.
Occupancy, wastewater loading, soil and site conditions, disposal system design and local approval requirements can all affect which septic tank and system is suitable for your property.
Already have a wastewater design?
Send it through with your quote request. Our team can help identify the Island Septic tank specified for your project and confirm pricing and delivery.
Designed for simpler septic installation
Island Septic tanks are manufactured in Tasmania from strong, lightweight polyethylene, combining a low-profile design with pre-assembled components to help make site preparation and installation simpler.
Built in Tasmania
Low profile. Strong construction.
Ready to install.
Purpose-built for residential wastewater applications, Island Septic tanks feature one-piece polyethylene construction, a low overall profile and factory pre-assembled fittings.
Low Profile Design
The low-profile design helps reduce excavation and site preparation requirements compared with deeper tank designs.
Arrives Ready to Install
100mm inlet and outlet fittings are factory pre-assembled for a quicker and easier installation.
Strong & Lightweight
One-piece rotationally moulded polyethylene construction delivers strength while keeping the tank relatively lightweight.
Made in Tasmania
Island Septic tanks are manufactured locally in Tasmania for residential wastewater applications.
Strong where it matters. Simple where it counts.
The Island Septic design combines a low overall profile with practical structural features to make transport, placement and installation easier while maintaining a strong one-piece tank body.
Purpose-Built Construction
Designed to reduce installation complexity
From its low-profile body to its integrated structural design, Island Septic tanks are engineered to arrive ready for placement and installation.
Low Profile
Reduced overall height helps minimise excavation requirements during installation.
Self Anchoring
The tank profile incorporates features designed to improve stability once installed.
Stability Feet
Integrated feet assist with stable positioning during installation and bedding.
No Internal Support
Strong one-piece polyethylene construction removes the need for a separate internal support structure.
Lifting Points
Integrated lifting points assist with handling and positioning the tank on site.
Heavy Duty Lid
Heavy-duty lids are sealed and pre-fitted, with optional risers available where required.
Certified to Australian Standards
Island Septic tanks are certified for use as on-site domestic wastewater septic tanks, with supporting Australian Standard, licence and Tasmanian accreditation details.
AS1546.1:2008
On-site domestic wastewater treatment units, Part 1: Septic Tanks.
DOC/24/59387
Island Septic tanks are certified for on-site domestic wastewater applications in accordance with the applicable septic tank standard.
Important: Certification of the tank does not replace site-specific wastewater design or approval requirements. Final tank selection and installation should be confirmed against the approved wastewater design and applicable local requirements.
Plan the site before your tank arrives
Good preparation before delivery helps make tank placement and installation much smoother. Your site should be prepared in accordance with the approved wastewater design and Island Septic installation requirements.
Confirm the Approved Location
The tank location should match the approved wastewater design, including the required levels, connections and site clearances.
Prepare Site Access
Ensure suitable access is available for delivery and for the equipment required to safely position the tank.
Follow Installation Instructions
Excavation, bedding, connection and backfilling should follow the approved wastewater design and Island Septic installation instructions.
Your approved wastewater design comes first
Site conditions and wastewater designs vary. Always follow the project-specific design and applicable installation requirements rather than relying on general product information alone.
Technical Resource
Installation Instructions
Review the complete Island Septic installation requirements before excavation, positioning and backfilling.
View Installation Instructions →Built locally for long-term service
Island Septic tanks are manufactured in Tasmania using rotationally moulded polyethylene and backed by documented design-life and manufacturing warranty provisions.
Made in Tasmania.
Built for lasting performance.
Island Septic tanks combine locally manufactured polyethylene construction with a documented design life and manufacturer warranty.
Design Life
Island Septic documentation lists a 15-year design life for the septic tank system.
Manufacture Warranty
Backed by a seven-year manufacturer warranty as stated in the Island Septic product documentation.
Design life and warranty are separate: the stated 15-year design life should not be interpreted as a 15-year product warranty. The Island Septic brochure separately lists a 7-year manufacture warranty.
Everything you need for your project
Access the detailed product information, installation guidance and certification documents for your Island Septic tank.
Specifications
Review the 3,054L tank dimensions, capacity, inlet and outlet positions and other detailed product information.
View Specification Sheet →Installation Instructions
Review the required excavation, placement, connection and installation requirements before work begins.
View Installation Instructions →Certification & Accreditation
View the supporting Tasmanian Government accreditation documentation for the Island Septic Series.
View Certification →
Get your septic tank & delivery quote
Tell us where your project is located and, if available, send through your approved wastewater design. We’ll help confirm the required Island Septic tank, pricing and delivery requirements.