Rainwater Tanks
Underground fibreglass rainwater tanks
Available in 4,000L – 82,000L
Our underground fibreglass rainwater tanks deliver exceptional performance where it matters most. Built using premium materials from industry leaders, these systems are engineered for superior durability in any environment. Access rainwater tanks provide the perfect solution for safe, clean drinking water storage, promising generations of reliable service with minimal maintenance.
Smart space-saving water
storage for your site
Safe, Potable Water Storage
Fibreglass tanks ensure clean, safe water by preventing contamination, corrosion, and leakage.
Space-Saving Design
Optimise your site space with discreet underground installation, preserving valuable surface area.
Designed to Last 100+ Years
Corrosion-resistant and structurally robust design provides decades of trouble-free water storage.
Cost-effective Installation
Lightweight construction simplifies transportation and reduces installation costs, labour, and time.
Site-specific Engineering
Custom-designed to meet your site’s specific conditions, ensuring compliance.
15 Year Industry Warranty
We stand by our tanks with a 15-year industry warranty that gives you confidence long after installation.
Rainwater tanks frequently asked questions
Do I need council approval?
Check with your local council for any planning or building regulations.
What size tank do I need?
Consider your household’s water usage and local rainfall patterns to determine the appropriate tank size.
How often should I clean my tank?
Regular maintenance includes cleaning gutters, screens, and downpipes, as well as checking sediment levels every two years.
How do I maintain water quality?
Regularly inspect and clean your rainwater system, including gutters, screens, and downpipes.
Can I drink rainwater from my tank?
While rainwater can be used for many purposes, it’s crucial to ensure proper filtration and storage to maintain water quality.
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 rainwater 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 rainwater tanks across Australia
Our lightweight fibreglass rainwater tanks can be shipped directly to your project location. We can organise the freight for you, or you can call on a trusted partner to deliver the new tank to your site. Lighter than concrete and tougher than plastic, our tanks are a hassle-free transport option that won’t slow you down.
Installable with only a franna crane or similar, our tanks eliminate the hassle of long, exhaustive installations, helping you cut down on labour costs and reach your milestones faster. Wherever you are in Australia, our tanks are guaranteed to help keep your project running smoothly.