Polymaster Rainwater Tanks are manufacturers and distributors of quality rain water tanks in Melbourne and throughout Victoria and South Australia. Rainwater tanks are a common feature of life in Melbourne due to water restrictions in the state of Victoria.
All our rainwater tanks are manufactured to the highest quality, and are certified to:
All Polymaster Rainwater Tanks and underground water tanks come with a full 10 year warranty.

In December 2008, Polymaster received Product Certification on all of our Rainwater Tanks from an independent testing authority. State and Federal Governments are now insisting on rainwater tanks to be certified to this Australian Standard AS/NZS 4766:2006 to be eligible to claim for Federal Government water rebates.
This certification is your best guarantee of a long lasting rainwater tank and means that your tank has been through many strict tests before it is dispatched to ensure it is of highest quality.
Click here for more information on Product Certification.
There are a few points to consider when choosing your rainwater tank. It’s important to be aware of your required water storage capacity – you can’t have a tank that’s too big whereas if it’s too small, you will have to reinvest down the track.
When planning to buy a water tank for storage of rain water, consider the following:
Step A
Calculate your yearly water usage from the Water Consumption Table.
Step B
Using the equation below to estimate the amount of rainfall your water tank could potentially collect off your house/shed roof.
Step C
Depending on how you intend on using the water or whether your house relies solely on rainwater, make sure you can harvest most of the rainfall falling on the roof in the wet season.
Step D
Finally look at the area available for tank/s and make sure you have enough room to install a tank. Our Slendaline slimline water tanks and underground water tanks are a great option for limited spaces.
Daily average water usage per household (house only)

Self Supporting Roof Design (No Pole Required)
Polymaster’s roof profile has been designed and tested over many years. The ribbed and domed design of the Polymaster tanks has a certified patent and registered design.
Rainwater Tanks are Corrugated for Strength
Polymaster’s traditional corrugated wall profile cannot be substituted for strength and appearance. A well known fact is, as soon as an object receives some ribbing, the rigidity increases enormously.
One Piece Construction
Roof and walls are moulded as one with no joins, seams or partlines down the walls. At no stage is the roof cut off and screwed back on.

If you need quality rainwater tanks in Melbourne or surrounding Victorian suburbs, call Polymaster on 1800 062 064.
Calculate your Water Catchment.
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First Flush Water Diverter.
Keep your Rainwater extra clean!
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Product Certification. All Polymaster Rainwater Tanks are certified to the Australian Rainwater Tank Standard
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