OzPoly Rainwater Tanks

OzPoly is North Queensland’s leading manufacturer of rainwater tanks.
Our water tanks are built in North Queensland to suit the rugged conditions in this region and are made to the highest quality standards. In fact, OzPoly has been making water tanks since 1983 and is one of Australia’s oldest and most experienced poly tank manufacturers.

OzPoly is a part of Bushman Tanks who is Australia’s leading manufacturer and distributor of water tanks, rainwater tanks, industrial tanks and associated products.

We focus on making water tanks that are of the highest quality and that are good value for money. Our poly water tanks that are easy to install – which farmers, home-owners and businesses love to own.

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    Benefits of an OzPoly Rain Water Tank

    OzPoly rainwater tanks are manufactured to the highest degree of quality.

    Poly water tanks provide pure rainwater for your family and are an excellent way to save water. Furthermore, using poly water tanks will provide ongoing economic, social and environmental benefits to your local area of North QLD.

    OzPoly water tanks are used extensively throughout North Queensland’s agricultural and pastoral region, providing water for stock and other agricultural uses.

    OzPoly water tanks are made from the highest grade polyethylene, creating a flexible, durable and hygienic one piece unit that will provide years of trouble free service.

    These water tanks are specifically designed and built with the climate of regional of North Queensland in mind. They are tough and will last in heat and sun.

    OzPoly water tank is true value for money; securing water and adding value to farms, businesses and domestic households in North QLD.


    Download the OzPoly Brochure

    Download the Informative OzPoly Brochure to:

    • Plan your purchase
    • Select the right rainwater tank(s) for your specific needs
    • Get all the details on specifications on all our products
    • Discover new products

    The Downloadable OzPoly Brochure Includes:

    Download My OzPoly Brochure

    View The OzPoly Product Range

    Round Tanks

    View Round Tanks

    Slimline Tanks

    View Slimline Tanks

    Poly Stock Troughs

    View Poly Stock Troughs

    OzPoly Tank Features

    • 550-47,300 litre water tanks capacities
    • All poly tank roofs are self-supporting, so there is no need for a centre support pole (and no WHS ssues with confined space & entry)
    • Large Tanks feature a UV cover under leaf strainer to block sunlight that causes algae growth
    • Polyethylene material complies with Australian standard AS2010 (food grade) and AS4020 (drinking water)
    • UV stabilised to withstand Australia’s harsh sun in the North QLD climate
    • Corrugated and smooth style available for sale to ensure the aesthetics of your home are kept
    • Maximum shot weight of plastic material to guarantee ample wall thickness
    • Walls on poly water tanks are thicker at the bottom for maximum strength where the water pressure is the greatest
    • OzPoly water tank moulds are designed and built to separate at the top ensuring part line is positioned in the least stressed area. Poorly designed moulds with parting lines down the sides lead to weak areas in the tank wall causing splitting
    • All poly tanks come with ball valves (depending on tank size) and overflows
    • Our poly water tanks are tested using inhouse facilities in QLD that include ultrasonic thickness measurements and impact testing
    • Our poly water tanks leave no residual taste in the water which means they are ready for use as soon as they’re installed
    • 25-year design lifespan in the QLD climate (using Finite Element analysis).
    View Our Round Poly Tanks Range


    OzPoly Promotions

    As the rain picks up, there has never been a better time to store water and create peace of mind knowing that fresh water supply is secure.

    Purchase a water tank this winter and plan ahead the dry season!

    This Winter Bushmans OzPoly are offering customers the chance to win 1 (one) of 5 (five) up to $1,000 Cash Back with the purchase of any Bushmans, Aqualine or OzPoly tank during the Winter Promotion period (1 June 2023 – 31st Aug 2023).

    To learn more click here! 

    OzPoly Capabilities

    OzPoly has the capabilities to manufacture the highest quality products for a wide range of clients and industries. This includes rainwater tanks; the ideal solution for homeowners to make the most of their water resources or commercial businesses who need to store and use rainwater.

    OzPoly water tanks are designed and built using the latest engineering technology to ensure the tanks will last. This includes;

    • Wall thickness which is thicker at the bottom, adding strength to the part of the tank that carries the most weight.
    • A high degree of efficiency ensuring consistency in all products OzPoly make.
    • Stackable poly water tanks are available

    Want to know more? Contact an OzPoly representative today!


    Frequently Asked Questions

    What is a poly water tank?

    A poly water tank is a polyethylene storage vessel, usually round or rectangular, designed to store water.

    How much do poly tanks cost? (Price)

    Poly water tanks range in price depending on their size and design. Small round water tanks range from 1000 litres to 7000 litres and cost around $600 to $4000 depending on design shape including GST. Larger round water tanks range from 10,000 litres to 50,000 litres and cost around from $2500 - $8000 including GST depending on size and design.

    Are polyethylene tanks safe for drinking water?

    OzPoly polyethylene tanks are food grade, and the water is safe for drinking. However, it is recommended that a filter is used before drinking as rainwater can meet with bacteria in gutters and pipes on the way into the water tank.

    How long do Poly water tanks last?

    Poly water tanks last from anywhere between 10-20 years. Some water tanks have lasted even longer periods of time. The location of the tank can influence its lifespan as a tank exposed to constant sunlight will not last as long as a tank that has some shade.

    Are poly tanks cheaper than steel?

    Poly water tanks are significantly cheaper than steel tanks as steel is more expensive than polyethylene. Polyethylene tanks are constructed in one piece and relatively light to transport compared to steel. Also, steel tanks need to be built onsite, which means construction time and labour needs to be accounted for if purchasing a steel tank.

    Can you repair poly tanks?

    Poly tanks can be repaired depending on the severity of the damage. A skilled poly welder can easily and cost-effectively seal cracks and damaged sections of a poly tank.

    How do you clean a polyethylene tank?

    Poly tanks can be cleaned by using some simple tank cleaning products, such as Puretec Tank Safe, these are cost effective and efficient solutions. You may also find tank cleaning services in your location.

    Can you put a poly tank in the ground?

    Poly water tanks can be partially submerged into the ground. However, to bury a poly water tank completely, it must be specifically designed to be buried.

    How do you insulate a poly tank?

    Insulating a tank is done to attempt to stop a tank from deforming due to water freezing in cold environments. OzPoly and Bushmans tanks are designed to be thick enough not to require having any insulation.

    Are Poly water tanks freeze proof?

    Poly water tanks can and do freeze. However, OzPoly and Bushman tanks are designed to be thick enough to withstand water freezing and cause no damage to the tank.

    How do I keep my poly tank from freezing?

    Poly tanks can be buried to attempt to stop them from freezing. However, in Queensland this is luckily not an issue as the climate is hot and tropical. With OzPoly tanks you do not need worry about the contents freezing. The tanks are strong enough to cope with this.

    Is a stainless steel water tank better than plastic?

    Stainless steel tanks are structurally stronger than plastic tanks and some steel tanks are rated to survive bushfires. However, they are significantly more expensive than plastic water tanks.

    How do I fix a leaky poly water tank?

    To fix a leaky water tank, first the leak must be identified and isolated. If the leak is coming from the outlets, the tank should be emptied, and new outlets should be fitted. However, if the tank itself has been damaged or is cracked, it will require a poly welder to come onsite and patch up the damaged area.




    OzPoly is producing and delivering. Due to Covid-19 additional safety and hygiene measures have been implemented to protect staff, customers and the community. Click here to read more information.