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Rainwater Tanks

Water Security

Rainwater Tanks for Year Round Water Security

Rainwater tanks let you capture and store water straight off your own roof, so you rely less on mains supply or town restrictions. This range features the Polymaster line up of rotomoulded, UV stabilised polyethylene tanks, from compact slimline units at 2,000L up to serious 50,000L round tanks, with up to 17 colours to match your home or landscape, so you can find one that suits both your property and your available space.

✓ 100% Aussie Owned & Operated ✓ Best Shipping Quotes ✓ Price Match Guarantee
  • Polymaster Slimline Water Tank 3000L in Dark Blue
    Polymaster Slimline Rainwater Tank 2000L in Black
    Polymaster Polymaster Slimline Rainwater Tank
    from $1,310.00
    17 colors available

    Polymaster Slimline Water Tank, Perfect for Residential Properties - available in 2000L, 3000L and 5000L Save on your water bill and start efficien...

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    from $1,310.00
  • Polymaster 22500L Round Rainwater Tank In Red next to a house
    Polymaster 22500L Round Rainwater Tank In Cream
    Polymaster Polymaster 22500L Rainwater Tank
    $3,695.00
    17 colors available

    22,500 Litre Polymaster Round Water Tank Slash your water bills and secure year-round supply with this extra-large Polymaster tank.  Designed to ca...

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    $3,695.00
  • Polymaster 31700L Round Rainwater Tank Out In the bush
    Polymaster 31700L Round Rainwater Tank In Dark Blue
    Polymaster Polymaster 31700L Rainwater Tank
    $5,125.00
    17 colors available

    Polymaster 31,700 Litre Round Water Tank Invest in a water solution that pays for itself over decades. The Polymaster 31700L Rainwater Tank not onl...

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    $5,125.00
  • Polymaster 50000L Round Rainwater Tank In Warehouse
    Polymaster 50000L Round Rainwater Tank In Maroon
    Polymaster Polymaster 50000L Rainwater Tank
    $8,790.00
    17 colors available

    Polymaster 50,000 Litre Rainwater Tank Take control of your water supply with the Polymaster 50,000 Litre Rainwater Tank, designed for large homes,...

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    $8,790.00

Slimline vs Round Rainwater Tanks

Both shapes suit different blocks, capacities and budgets when choosing a rainwater tank.

Slimline Tanks

Slim, flat sided tanks that sit neatly against a wall or fence, ideal for suburban and urban blocks where space is tight. Available from 2,000L to 5,000L in this range, with up to 17 colours to blend into your home. A good choice for garden watering, laundry and supplementary household supply.

Round Tanks

Traditional round tanks that hold far more for the footprint, from 22,500L up to 50,000L. Built for whole house supply, livestock and drought resilience on rural and commercial properties. The clear choice when serious water storage is the priority.

What Size Rainwater Tank Is Right for My Property?

Tank sizing comes down to your roof catchment area, your local rainfall and how you plan to use the water. As a rough guide, slimline 2,000 to 5,000L tanks suit suburban blocks and garden or supplementary use; midsize round tanks around 22,500L suit rural homes wanting whole house supply; and 31,700L to 50,000L tanks suit larger properties, farms and commercial operations needing a deep buffer through the dry season. Measure your available space before buying, and if you are between sizes, size up, since you will rarely regret the extra storage. Prices in this range currently start from $1,310. See each product page for exact capacities and dimensions.

Rainwater Tank Features Worth Looking For

Not every tank needs every feature, but these are the ones that matter most for longevity and everyday use.

  • ✓Single piece rotomoulded buildMoulded as one seamless piece, so there are no joins or seams to split or leak over time.
  • ✓UV stabilised polyethyleneTreated to withstand harsh Australian sun, resisting fading and breakdown outdoors.
  • ✓Inlet, overflow and outlet fittingsWell placed fittings make it easy to connect your downpipes and plumbing and direct overflow away from the tank.
  • ✓Potable grade materialMade from material suitable for storing drinking water when paired with correct first flush and filtration.

Can I Use Rainwater Tank Water for Drinking?

Poly rainwater tanks are made from material suitable for storing potable water, but safe drinking water also depends on how the system is set up and maintained. Best practice is to fit a first flush diverter, screen the inlet and overflow, keep the tank covered, and add filtration where needed. Always follow your local council and health guidelines. The Australian Government enHealth guidance (linked below) is a good starting point.

Frequently Asked Questions

What base does a rainwater tank need?

Poly tanks need a level, stable, fully supported base sized to the tank's footprint, commonly compacted crusher dust or sand, or a concrete pad. Preparing the base correctly is important for the tank's longevity. Check the product page or contact us for the recommended base for a specific tank.

Do you deliver, and how much is shipping?

Rainwater tanks are bulky freight, so we quote shipping individually to get you the best price. Contact us on 1300 970 390 or info@homesteadhaven.com.au with your postcode for a quote.

What colours are available?

Tanks in this range come in up to 17 colours, so you can match the tank to your home or blend it into the landscape. The exact options are shown on each product page.

Do you offer a price match guarantee?

Yes. Found it cheaper elsewhere? Let us know and we will do our best to beat it.

Delivery Information

Rainwater tanks are bulky freight, so delivery is arranged individually rather than at a flat rate. Most orders are dispatched promptly, with timing depending on your location, the tank size and freight availability, and regional and remote areas may take a little longer. Get in touch for the best shipping quote to your address.

Explore Related Ranges

A few other ranges worth a look if you are building water security into your property.

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Why Shop With HomesteadHaven

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Price Match Guarantee

Find it cheaper elsewhere? We will do our best to beat it.