This comprehensive guide covers everything home and lifestyle property owners in NSW and SE QLD need to know about choosing, installing, and maintaining rainwater tanks. From compact 500 L slimlines to large 32,000 L round tanks, we’ll help you select the perfect system for your property, saving water, money, and keeping your garden green all year round.
Why Every Australian Home Should Harvest Rainwater
Collecting rainwater isn’t just good for the environment — it’s a smart way for home and lifestyle property owners in NSW and SE QLD to reduce water bills, protect against drought, and keep gardens, pools, and household systems running year-round.
Reduce water bills – Use rainwater for gardens, pools, and non-potable household needs.
Water security in dry times – Water supply during droughts or water restrictions.
Environmentally friendly – Reduce stormwater runoff and conserve local
water resources.
Support garden & pool health – Cleaner water for plants and animals.
Easy integration – Seamlessly with your home and property layout.
Want to learn more about our products and how they can benefit you?
Read our full guide: 12 Reasons Why Every Australian Home Should Have a Rainwater Tank
Your rainwater tank should fit your property perfectly — and look great doing it. Whether you’re tight on space, want a tank that complements your home’s colour, or need maximum capacity, RapidPlas has a tank to match your needs.
Sizes: 500L to 32,000L
9,000L+ include delivery to site; 9,000L and below delivered to the nearest RapidPlas dealer (extensive network across NSW & SE QLD)
Corrugated walls on all sizes (except 32,000L) for strength and iconic good looks. Crown Force™ roof design features triangular fins to avoid needing a centre pole
Available in 19 popular colours, matching the Colorbond® range.
Sizes: 500L to 5,000L
Engineered for strength and modern looks, designed entirely in-house
Small footprint ideal for tight urban spaces or next to sheds. Designed for linking multiple tanks — 2 inlets, 2 outlets, plus a tap outlet
Available in 19 popular colours, matching the Colorbond® range
Size: 3,000L
Perfect when space and accessibility are limited, especially in urban environments. Can be installed under driveways, paved areas, garden beds, or lawns
Popular with architects and builders to maximise green space or parking
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RapidPlas tanks are available in a wide range of Colorbond®-inspired colours to complement your home or surroundings.
💧 Need help choosing the perfect tank for your home?
Our team can help match the right shape, size, and colour to your property.
How Much Does a Rainwater Tank Cost in NSW and SE QLD?
One of the most common questions we get is a simple one: what should I expect to pay?
At RapidPlas we believe in honest, upfront pricing — so every product on our website has its price published, with nothing hidden and no need to chase a figure.
For our large tanks, that price is shown as a range, because we deliver them directly from our Tamworth factory and your final price depends on where the tank is headed and how many you need.
Our large tanks are delivered straight to your property across NSW and SE QLD, so the delivered price varies with your location and quantity. That's why each large tank shows a price range on its product page — the lower end reflects our best single-tank pricing within our core delivery area, and it moves toward the upper end the further out you are. No surprises: the range on the page is the range you'll pay from, and we confirm your exact figure the moment you request a quote.
View full range and pricing on our large tanks → HERE
Get your exact price, delivered to your location. [Request a Quote →] or call us on 02 6765 0700.
Smaller tanks are delivered free to your nearest RapidPlas stockist, with hundreds of dealer locations across NSW and SE QLD. Your dealer can arrange onward delivery to your property. Find your nearest stockist → HERE
Every RapidPlas tank price includes the fittings most manufacturers charge extra for — overflow fitting, stainless steel strainer, light/dust cover to prevent algae growth, two BSP outlets, lifting lugs, and ball valve.
Published prices are RRP — but if you're buying multiple tanks, looking at a tank and pump package, or want to know if there's a current promotion running, it's always worth talking to our sales team directly. We regularly run campaigns with special pricing, and buying a full truck load can open up freight savings that make a real difference to the total cost. Our team can put together the best combination for your property and budget.
Get a Quote HERE or Call Us: 02 6765 0700
Large tanks (9,000L and above) are delivered free to your property within the RapidPlas standard delivery area. Our purpose-built delivery fleet covers from Bega to Bundaberg. Some exceptions apply where permits or specialised access is required — our team will advise at quote stage.
Rainwater Collection: How to Capture, Filter & Use Water Efficiently
Collecting and using rainwater is one of the smartest ways to make your property more sustainable and self-sufficient. With the right system in place — from your roof to your tank — you can harvest thousands of litres of clean water every year for your garden, household, or animals.
Whether you’re installing a new tank or upgrading an existing setup, understanding how to capture, filter, and store water properly will make all the difference to water quality and long-term system performance.
Start With a Good Roof Catchment
Your roof is the first step in your rainwater harvesting system, whether it's your home or shed roof.
Leaf guards and mesh screens help prevent debris from entering your system.
Install a First-Flush Diverter & Filter System
Before water enters your tank, it should pass through a first-flush diverter — a simple device that redirects the first dirty flow of rainwater (which contains dust, bird droppings, and debris) away from your tank.
Consider a filter if your planning on using the water for drinking.
Make the Most of Your Rainwater
For many households a well-planned rainwater system can cover a large portion of everyday water needs
Find Out How Much Rainwater You Can Collect
Wondering how much water your roof could actually capture? It’s easy to work out using the RapidPlas Water Calculator. Simply enter your roof size and average rainfall, and you’ll get a estimate of how much rainwater you can harvest each year — helping you choose the right tank size for your needs.
Keep It Clean & Flowing
Even the best-designed systems need a little care. Every few months:
A few minutes of maintenance keeps your water fresher and your system performing efficiently year-round.
Getting Your Tank Installed Right — Advice That Matters
At RapidPlas, we don’t just manufacture tanks — we help you get the most from them.
From choosing the right location to installing and connecting your tank, a little planning goes a long way toward ensuring the best performance, safety, and longevity.
Choosing the perfect spot for your tank
The first step is finding the ideal spot for your tank.
You’ll want a level, stable base close to your roof catchment area and downpipes — ideally where it’s easy to access for maintenance and out of the way visually.
If you’re not sure where to start, we’ve put together a handy guide that walks you through the best placement options for different properties.
Site Preparation
Before installation begins, getting the base right is critical for tank performance and warranty coverage.
Your tank site should be level, compacted, and clear of debris, with adequate drainage and easy delivery access.
Tank Installation
See how simple it is to set up a RapidPlas tank, from offloading to connection.
For most households, installation is best handled by your local plumber, who will ensure your system is safe, compliant, and set up to suit your site.
While RapidPlas doesn’t directly recommend installers due to our wide delivery zone, your plumber can easily install your RapidPlas tank
Premium Inclusions — Standard with Every RapidPlas Tank
Every RapidPlas tank leaves our factory ready to perform, featuring inclusions most competitors charge extra for:
Overflow fitting
pre-fitted on round tanks, supplied loose for slimlines
Stainless steel strainer with light & dust cover
keeping debris out of the tank. Blocking light prevents algae growth
Two BSP outlets
for linking multiple tanks or connecting pumps/accessories
Lifting lugs
Lifting lugs (round tanks) and moulded hand grips (slimlines) for safe, easy handling
Ball valve
So your tank is ready to use
Accessories to complete your set-up
To complete your rainwater system, it’s worth considering what extras you might need — like a pump, joiner kits for linking multiple tanks, filtration, and water-level gauges.
Buying these at the same time as your tank not only makes setup simpler but also helps you save money.
To make things even easier, RapidPlas has put together a range of Tank Packages featuring popular inclusions — expertly matched so everything fits and performs perfectly together.
When you invest in a RapidPlas rainwater tank, you’re choosing a product designed for decades of reliable service.
Like any important part of your home, your tank will benefit from a little maintenance and care over time.
Warranty, Support & Knowledge Centre
At RapidPlas, we stand behind every product we manufacture.
Every RapidPlas rainwater tank is designed and manufactured for long-term reliability and performance. Our tanks come with a 10-year manufacturer’s warranty, based on the same premium raw material warranty that all Australian poly tanks are built upon.
But here’s what sets us apart — many of our tanks have been in service for over 30 years and are still performing today. That’s the kind of real-world durability that gives our customers confidence their investment will stand the test of time.
Our secret lies in the details:
If you ever have questions about your tank, delivery, or installation, our team is here to help. We don’t just sell tanks — we support you throughout the life of your product.
Warranty coverage on all our Australian-made products, giving you complete confidence in your purchase.
View Warranty DetailsOur dedicated Australian support team is here to help with technical questions, installation guidance, and product advice.
Contact SupportBrowse parts and accessories, including outlets, strainers, and fittings — everything you need for maintenance or upgrades.
Browse Parts
How Much Rainwater Storage Do You Really Need?
Choosing the right tank size depends on your property type, roof catchment area, and how you plan to use your rainwater. Whether you’re watering gardens, topping up a pool, or supplying your entire home, it’s important to get it right from the start.
Urban Homeowners
(Small Garden Use)
Typical roof area: 150–250m²
Recommended tank: 1,500–10,500L
Ideal for: Garden watering, car washing, and outdoor use.
Easy installation in residential properties
Compliant with local council regulations
Lifestyle Properties
(Mixed Household + Outdoor Use)
Typical roof area: 250–400m²
Recommended tank: 14,000–27,000L or multiple tanks
Ideal for: Home supply, gardens, animals, and pools.
Long-term cost savings on water usage
Increase property value with eco-friendly features
Rural Properties
(Full Water Supply - Off Mains)
Typical roof area: 400m²+
Recommended tank: Multiple large tanks
Ideal for: Whole-of-property supply including livestock.
Fire protection and emergency water reserves
Customisable solutions for unique farm needs
Ready to start your rainwater harvesting journey? Our expert team is here to help you choose the perfect solution for your property.
Owned and manufactured in Australia
Sun protection technology
Every tank tested, exceeding Australian Standards
