Septic Tanks Sydney
Engineered for durability.
Designed for easy handling.
Custom-built for your site.
Septic tanks
Custom-made 4,000L – 82,000L
Our fibreglass septic tanks deliver reliable, long-term performance to Sydney’s demanding construction sector. Crafted with premium materials from ALLNEX Composites, these systems are designed to handle the unique challenges of Sydney’s coastal environment and urban developments, ensuring that homeowners, builders, and plumbers alike can tackle wastewater challenges with lasting peace of mind.
Sydney-tough construction
A corrosion-resistant fibreglass construction ensures long-lasting performance and eliminates premature replacements.
Optional inbuilt pump chambers
Our integrated pump chamber options save valuable space on building sites while simplifying compliance with NSW planning requirements.
Easy installation
Our lightweight design dramatically reduces installation complexity in Sydney’s fast-paced construction environment. NSW contractors can position tanks with minimal equipment, avoiding the logistical challenges of Sydney’s congested urban sites.
15-year industry warranty
Our 15-year industry warranty provides confidence and peace of mind that your tank will perform now and in the future.
Anaerobic baffled reactors
Custom-made 6,800L – 82,000L
Our anaerobic multi-baffled reactors provide superior treatment while minimising the system footprint, a valuable advantage for maximising usable space on Sydney properties.
Enhanced treatment performance
Multi-baffled design provides superior organic matter breakdown, significantly improving BOD and TSS removal compared to conventional septic systems.
Adaptable to variable flow
Built-in variable flow capabilities effectively manage changing wastewater loads without affecting treatment efficiency or system stability.
Optional inbuilt pump chambers
An optional inbuilt pump chamber provides an efficient, compact solution that reduces installation time and cost.
15-year industry warranty
We stand by our tanks with a 15-year industry warranty that gives you confidence long after installation.
Collection wells
Custom-made 4,000L – 82,000L
Our collection wells provide Sydney developers with reliable storage that satisfies NSW’s stringent environmental protection requirements. Collection wells do not treat sewage; they merely store it. Once full, the collection well or holding tank is emptied and treated at another location. This is a key way collection wells differ from septic tanks, which discharge partially treated sewage (called effluent) into the soil for final treatment through an outlet.
Leading corrosion resistance
Zero rust or deterioration in harsh environments, outlasting competitors by decades with virtually no maintenance.
100% leakproof
Seamless one-piece construction guarantees no groundwater infiltration or contamination leakage risk, ensuring total environmental protection.
Simple, light-weight installation
Our lightweight tanks can be positioned and installed without the taxing equipment requirements of concrete alternatives.
15-year industry warranty
We stand by our tanks with a 15-year industry warranty that gives you confidence long after installation.
Pump chambers
Custom-made 6,800L – 82,000L
Our pump chambers integrate seamlessly with local infrastructure and onsite treatment systems, providing NSW developers, builders, plumbers, and homeowners with versatile and reliable wastewater solutions. The purpose of a pump chamber is to distribute effluent wastewater and sewage to the main sewage system. If there is no sewage system, the waste will be pumped to a sewage treatment facility, such as a septic tank system. The pump chamber can also be used for stormwater.
Reliable performance
Our septic tanks’ robust construction ensures consistent operation even in challenging sites.
Flexibility across projects
Ideal for both wastewater and stormwater management, our pump chambers are designed to adapt seamlessly to diverse applications.
Easy installation
Our lightweight design facilitates efficient installations within Sydney’s tight construction windows and restricted site access, keeping projects on schedule.
15-year industry warranty
We stand by our tanks with a 15-year industry warranty, giving you confidence that your investment will last long after installation.
Septic tanks designed
for generations
Built to Last 100+ Years
Our durable fibreglass tanks outlast concrete and plastic. Forget cracks, leaks, and other hidden time-bombs.
Tailored For Your Site
Every tank is custom-engineered, ensuring an easier installation, reduced labour, and long-term performance.
Structurally Engineered
Each product is carefully engineered and rigorously tested to ensure compliance and meet AS/NZS 1546:2008.
Industry-Leading Depths
Approved for industry-leading installation depths, up to 2.5 metres (DN1600) and 4.5 metres (DN2400), for maximum flexibility on challenging sites.
Simple Installations
Our lightweight fibreglass tanks are designed for easy handling, reducing installation time, heavy machinery use, and project costs.
Cost-Effective
Embrace long-term savings with competitively priced tanks that eliminate maintenance hassles, reduce installation costs, and offer superior value over time.
Sydney septic tanks built tough, priced right.
Septic tanks frequently asked questions
How often should my septic tank be pumped?
A general guideline is every 3 to 5 years, but some systems may require more frequent pumping.
What should I NOT put down the drain?
Certain items can damage the septic system and should be avoided.
These include:
- Greases, oils, and fats: These can solidify and clog pipes and tanks.
- Household chemicals: Such as bleach, paint thinners, and pesticides can kill the beneficial bacteria in the system.
- Solids: Non-degradable items like diapers, wipes, and feminine hygiene products can block the system.
What if my septic system smells?
If you smell a strong, foul odour, it could indicate a problem with the system, such as a blockage or a buildup of harmful gases. Contact a septic system professional immediately.
Are septic tanks environmentally friendly?
Yes, septic systems use natural bacteria to break down household waste.
How do I care for my septic system?
Proper care includes:
- Avoiding flushing prohibited items: This protects the beneficial bacteria and prevents blockages.
- Regularly pumping the septic tank: This removes sludge and keeps the system functioning properly.
- Proper venting: Ensures proper gas release and prevents odours.
- Regularly inspecting and maintaining the system: This can help identify and address potential problems early on.
Engineered to outlast
the competition
Concrete Tanks
- Service life of 50+ years
- Heavy, labour-intensive installation
- Difficult to transport
- Can crack over time
- Weakens with methane gas exposure
Access Tanks
- Service life of 100+ years
- Lightweight, easy to install
- Easy to transport
- Won’t warp, crack, or corrode
- Built tough for all conditions
Plastic Tanks
- Service life of 20+ years
- Easy to install but structurally weak
- Prone to damage during transport
- Notorious for warping and cracking
- Vulnerable to UV exposure
Get a free no-obligation septic tank quote
Hear from our clients
Well done in bringing this product to the market
Hi Rob. Just wanted to pass on how pleased I am with your tanks. You have bridged the gap with a product that addresses the problems with the light weight poly products and the heavy concrete tanks. You have a brilliant design that will not split or distort as the poly tanks do or delaminate in a corrosive or acidic environment that will destroy any concrete tank. They do not need any heavy lifting equipment to install or transport and have a riser system that can be adjusted to suit the ground level perfectly without the need to position the tank to suit this. A truly brilliant product that will give years of service. Well done in bringing this product to the market. Kind regards, Wayne
Wayne Mclean
Wayne Mclean Plumbing Services
All Water Plumbing has been working closely with Access Tanks now for 10+ Years
All Water Plumbing has been working closely with Access Tanks now for 10+ Years as a distributor of their products throughout the Eyre Peninsula region. Their product quality and service are second to none including their technical support, this has made it very easy for us to promote and sell their Wastewater Systems and Septic Tank Products with confidence. The product features and light weight design allow for installation in challenging sites giving customers an alternative to other brands. We are extremely happy to be associated with Access Tanks and will continue to support them.
Trevor Castley
ALL Water Plumbing
Phil Wilkinson Plumbing and Gas Fitters have been installing the septic tanks and tank riser and lids for around 10yrs
Phil Wilkinson Plumbing and Gas Fitters have been installing the septic tanks and tank riser and lids for around 10yrs. These products whether it’s 3,000 or 30,000 ltr tank you need or just the riser they can do it. The risers are fantastic, lightweight yet very strong, sturdy and well made, these can be installed at any depth. The unit is a once buy, you’ll never have to dig it up again and unlike the concrete alternative, is level with the ground and does not need 2 men to safely lift the lid. It’s a no- brainer get it done today!
Phil Wilkinson
Phil Wilkinson Plumbing and Gas Fitters
The saddle and riser worked out perfectly
The saddle and riser worked out perfectly. Easy to put in place – a brilliant design in it’s simplicity. I’m very happy that I came across you online. The pump out boys (Alexandrina council) we’re seriously impressed too – I’m guessing they’re hoping a lot more people put them in place too (save their backs)!
Joe Rasera
Loved the product!
Made life very easy compared to concrete!
Tim Williams
Businesses that
trust us
We deliver septic tanks across Sydney and greater NSW
We deliver our tanks directly to projects across Sydney and New South Wales. We can organise the freight for you, or you can call on a trusted partner to deliver the new tank to your site.
Our easy-to-handle tanks represent a significant advantage for Sydney builders facing tight schedules and limited site storage. From Newcastle to Wollongong, across Western Sydney and into regional NSW, our septic solutions arrive ready for immediate installation with only a franna crane, helping your project meet critical milestones without costly delays.