Round Poly Tanks

Round Poly Tanks

Round poly water tanks are the best value water tanks available. All of our tanks are Australian made by trusted Australian manufacturers. When thinking about which tank is right for your situation, we suggest get the biggest one you can fit and afford. We say this because you can never be sure how long it will be until the next rain so you want to be sure that when you go to use your tank water, it will still be there.

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2100ltr Melro Round Poly Tank
$455.00 Ex Tax: $455.00

2100ltr Melro Round Poly Tank

Melro's a long serving, trusted brand in the poly tank industry. Their locally made tanks are excellent quality & appearance & include quality fittings for easy connection.  Various colours available, choose the colour to suit your setting! Made in one piece Flat sided walls Tested food grade polyethyleneNon toxic and taste free ..

1000ltr All Poly Round Tank
$489.00 Ex Tax: $489.00

1000ltr All Poly Round Tank

All Poly's range of water tanks are excellent quality & design. Their corrugated exterior looks great, add to their strength & blends nicely into the surrounding environment. Various colours available, choose the colour to suit your setting! Made in one piece Corrugated walls for appearance and strengthTested food g..

2500ltr Melro Round Poly Tank
$536.00 Ex Tax: $536.00

2500ltr Melro Round Poly Tank

Melro's a long serving, trusted brand in the poly tank industry. Their locally made tanks are excellent quality & appearance & include quality fittings for easy connection.  Various colours available, choose the colour to suit your setting! Made in one piece Flat sided walls Tested food grade polyethyleneNon toxic and taste free ..

2250ltr Nylex Round Poly Tank
$632.50 Ex Tax: $632.50

2250ltr Nylex Round Poly Tank

Nylex is a name associated with quality like no other. With a wide range of tanks, they offer of choice of sizes and contemporary colours to suit your needs. This Nylex tank is: Made in one piece Flat sided walls Tested food grade polyethyleneNon toxic and taste free Will not rust or corrodeTanks made to Australian Standard, AS/NZS4766:2006 C..

1000ltr Waterstore Tall Poly Tank
$665.00 Ex Tax: $665.00

1000ltr Waterstore Tall Poly Tank

The 1000 Litre Trim tank is ideal for suburban areas. Designed to go in those narrow areas between the fence or carport, in a courtyard or the fernery. Two sets of fittings are supplied with this tank, the bigger tap for the bottom (to hook a hose or pump up to) the other tap can be placed at bucket height (so you can fill the kettle or garden buck..

2250ltr All Poly Round Poly Tank Squat
$705.00 Ex Tax: $705.00

2250ltr All Poly Round Poly Tank Squat

All Poly's range of water tanks are excellent quality & design. Their corrugated exterior looks great, add to their strength & blends nicely into the surrounding environment. Various colours available, choose the colour to suit your setting! Made in one piece Corrugated walls for appearance and strengthTested food g..

2250ltr All Poly Tall Poly Tank
$705.00 Ex Tax: $705.00

2250ltr All Poly Tall Poly Tank

All Poly's range of water tanks are excellent quality & design. Their corrugated exterior looks great, add to their strength & blends nicely into the surrounding environment. Various colours available, choose the colour to suit your setting! Made in one piece Corrugated walls for appearance and strength Tested food grade polyethyleneNon..

2250ltr Waterstore Round Poly Tank
$750.00 Ex Tax: $750.00

2250ltr Waterstore Round Poly Tank

This tank is used for fresh drinking water on farm or in town. Fits in easily and is suitable for placement straight on the ground or stand. Often plumbed to the kitchen sink, providing a good-sized drinking water tank. Excellent for a header tank on a stand to pressurize the house water system. This Waterstore Tank comes with the following fittin..

4500ltr All Poly Tall Poly Tank
$885.00 Ex Tax: $885.00

4500ltr All Poly Tall Poly Tank

All Poly's range of water tanks are excellent quality & design. Their corrugated exterior looks great, add to their strength & blends nicely into the surrounding environment. Various colours available, choose the colour to suit your setting! Made in one piece Corrugated walls for appearance and strengthTested food g..

4500ltr All Poly Round Poly Tank Squat
$912.00 Ex Tax: $912.00

4500ltr All Poly Round Poly Tank Squat

All Poly's range of water tanks are excellent quality & design. Their corrugated exterior looks great, add to their strength & blends nicely into the surrounding environment. Various colours available, choose the colour to suit your setting! Made in one piece Corrugated walls for appearance and strengthTested food g..

5500ltr Melro Round Poly Tank
$922.00 Ex Tax: $922.00

5500ltr Melro Round Poly Tank

Melro's a long serving, trusted brand in the poly tank industry. Their locally made tanks are excellent quality & appearance & include quality fittings for easy connection.  Various colours available, choose the colour to suit your setting! Made in one piece Flat sided walls Tested food grade polyethyleneNon toxic and taste free ..

4500ltr Waterstore Tall Poly Tank
$1,190.00 Ex Tax: $1,190.00

4500ltr Waterstore Tall Poly Tank

This tank is often the choice for town or country drinking water. Placed on ground or stand, this tank catches a useful amount for the house-hold or clean chemical free rain-water for ferneries, house plants, etc. This Waterstore Tank comes with the following fittings:25mm Brass Outlet25mm Brass Ball Valve,Inlet Strainer90mm Overflow..

4500ltr Waterstore Round Poly Tank
$1,270.00 Ex Tax: $1,270.00

4500ltr Waterstore Round Poly Tank

This tank is used as a drinking water tank on stands for low-pressure systems made to replace the short lived galvanized iron tanks seen on many older properties. Waterstore squat is an attractive tank in a great choice of colours.This Waterstore Tank comes with the following fittings:25mm Brass Outlet25mm Brass Ball Valve, Inlet Strain..

7200ltr All Poly Round Poly Tank
$1,394.00 Ex Tax: $1,394.00

7200ltr All Poly Round Poly Tank

All Poly's range of water tanks are excellent quality & design. Their corrugated exterior looks great, add to their strength & blends nicely into the surrounding environment. Various colours available, choose the colour to suit your setting! Made in one piece Corrugated walls for appearance and strength Tested food grade polyethyleneNon..

10100ltr Melro Round Poly Tank
$1,559.00 Ex Tax: $1,559.00

10100ltr Melro Round Poly Tank

Melro is a long serving, trusted brand in the poly tank industry. Their locally made tanks are excellent quality & appearance & include quality fittings for easy connection.  Various colours available, choose the colour to suit your setting!Made in one piece Flat sided walls Tested food grade polyethylene Non toxic and ta..

9000ltr Waterstore Round Poly Tank
$1,590.00 Ex Tax: $1,590.00

9000ltr Waterstore Round Poly Tank

The handy dimensions of this tank make it an ideal choice where smaller roof areas or confined spaces make larger tanks unnecessary or impractical. Sometimes used on stands for low pressure systems and often used to replace galvanized tanks of the same size. Popular as header tanks on elevated country. This Waterstore Tank comes with the following..

13500ltr Nylex Round Poly Tank
$2,151.00 Ex Tax: $2,151.00

13500ltr Nylex Round Poly Tank

Nylex is a name associated with quality like no other. With a wide range of tanks, they offer of choice of sizes and contemporary colours to suit your needs. This Nylex tank is:Made in one piece Flat sided walls Tested food grade polyethylene Non toxic and taste free Will not rust or corrode Tanks made to Australian Standard, AS/..

22700ltr Waterstore Round Poly Water Tank
$2,530.00 Ex Tax: $2,530.00

22700ltr Waterstore Round Poly Water Tank

The most economical of all tanks for home or farm storage. A versatile large capacity storage tank which can be moved at any time looks good and contains a large capacity. Many systems utilize multiples of this tank. This is the most economical and versatile way to save large volumes of rainwater where the house and sheds are not in the immediate a..

22700ltr Nylex Round Poly Tank
$2,870.00 Ex Tax: $2,870.00

22700ltr Nylex Round Poly Tank

Nylex is a name associated with quality like no other. With a wide range of tanks, they offer of choice of sizes and contemporary colours to suit your needs. This Nylex tank is: Made in one piece Flat sided walls Tested food grade polyethyleneNon toxic and taste free Will not rust or corrodeTanks made to Australian Standard, AS/NZS4766:2006 C..

24000ltr Melro Round Poly Tank
$3,436.00 Ex Tax: $3,436.00

24000ltr Melro Round Poly Tank

Melro is a long serving, trusted brand in the poly tank industry. Their locally made tanks are excellent quality & appearance & include quality fittings for easy connection.  Various colours available, choose the colour to suit your setting! Made in one piece Flat sided walls Tested food grade polyethyleneNon toxic and taste free ..

33750ltr Waterstore Round Poly Water Tank
$3,890.00 Ex Tax: $3,890.00

33750ltr Waterstore Round Poly Water Tank

The largest Tank in Water-Store's Poly Tank range. Used extensively in Industry or on the Farm. This tank can be configured for maximum capacity as either a single tank, or as one of multiple for even larger storage needs.Standard fittings supplied are:40mm Brass Outlet 40mm Brass Ball Valve90mm overflow Inlet Strainer.      ..

30000ltr Nylex Round Poly Tank
$4,375.00 Ex Tax: $4,375.00

30000ltr Nylex Round Poly Tank

Nylex is a name associated with quality like no other. With a wide range of tanks, they offer of choice of sizes and contemporary colours to suit your needs. This Nylex tank is: Made in one piece Flat sided walls Tested food grade polyethyleneNon toxic and taste free Will not rust or corrodeTanks made to Australian Standard, AS/NZS4766:2006 C..

Need Help with Round Poly Tanks?

Round Poly Tanks FAQs

Round Poly Tanks FAQs
  • Yes, they can be completely recycled.

    Polyethylene is already regularly recycled and used again in different products. The poly tank industry has shown a real concern for our environmental future by working with Auckland University on finding new ways to make it easy for tank owners to recycle their own tanks at the end of their product life.

  • Rainwater is harvested from roofs, channelled down gutters and through downpipes. These surfaces can also catch dirt, dust and insects that can be captured in your water tank through the water collection process.  Leaf strainers, gutter guards and water diverters all provide protection against dirt and dust entering your tank.

    Over a period of time, your water tank will build up sludge and muck that sits on the bottom and the walls of your water tank (especially if it has corrugated walls). There are many things which contribute to this such as:

    • wood fires (smoke can settle on your roof)
    • high tree areas (sticks and leaves can fall on your roof)
    • high traffic areas (polution from traffic can settle on your roof)
    • some new roofs (they have a clear film which eventually wears off)
    • Animals (dead possums, birds, mice etc)
    • Mosquitos (which can lay eggs and breed)
    • Eucalyptus (from over hanging trees) etc

    It is recommended that you clean out your tank regularly every 2-3 years to avoid such issues occuring.  

    Straight (smooth sided) water tanks are the easiest to clean.  How do you clean your tank?

    1. Once the tank is empty, spray down the inside of your water tank with a hose.
    2. Use a medium bristled broom to scrub down the walls. (do not use chemicals)
    3. Give the wall a final rinse and wash any muck out through the outlet.
    4. Your tank is now right to fill again.


  • Concrete Slab

    The no-compromise solution to base construction is a reinforced 100mm concrete slab.  A slab can be square or round.  The base should always be 100mm larger than the diameter of the tank. Prior to pouring the slab, ensure the ground has been 100% compacted. Your base will be compromised if soil has not been compacted and will affect your tank guarantee.

    Crusher Dust/Sand

    A crusher dust/sand base is considerably cheaper than a concrete slab, but may need to be augmented over time.  Heavy rain falls can erode a crusher dust base and may cost you extra if it needs to be repaired. It’s best to use treated pine sleepers, screwed together at the ends to create a retainer for the crusher dust/sand but many other materials are appropriate.  Ensure base is compact and sturdy prior to laying down the crusher dust/sand. Base should be anywhere from 25mm to 50mm high when compacted.  Crusher dust or sand is available from any landscape material suppliers.

    Pre-Cast Concrete Slabs

    1. A series of pre-cast concrete slabs or pavers on a sealed bed of sand makes an appropriate base for a slim cylinder tank or a tank stand.***Please note that all Wall tanks must be on a concrete base for safety.
    2. Prepare a flat area for your tank. Clear an area that is 300mm wider than the diameter of your tank.
    3. Make sure the ground is 100% compacted and that there are no rocks, stumps, tree roots or anything else that could affect/damage the base of your tank and void your guarantee.
    4. Place sand on base. Put in a bed of sand (packing or river sand) about 25mm to 50mm thick. Bluestone dust is also acceptable, just ensure it is well packed down.
    5. Flat & Level. Make sure your base is flat and level so that the base of the tank is fully supported.
    6. Tank delivery. Once the tank is delivered and fitted, put either sleepers, pavers or bricks around your site and box the sand in. This is important, as it keeps your base stable and prevents the sand from washing away.

  • There are poly tanks that have been giving loyal service storing liquids for over 30 years, however there is no definite "life" period for a poly tank.

    As with any other product you buy, its "life" will depend on how you install and maintain it, after it leaves the factory and what the service environment is like.

    Most tanks will far outlive their warranty period, however the Australian & New Zealand Standard requires a design life of 10 years.

  • There are a few factors to consider when buying your first tank. You many want to consider the following:

    1. What is the tank being used for?
    2. Where will I put the tank and how much room do I have?
    3. How will I put the tank into position? (consider fences and driveway access)
    4. How much water can I catch off my roof?
    5. What is my budget?

  • The size of your tank shouldn’t be determined by either of those things as we’ll never know how long it could be between rain events. So we always recommend looking for the biggest tank you can reasonably fit into your yard & one you can reasonably afford.

  • Plastic, or polyethylene (poly), water tanks are now the biggest selling sector of the booming water tank market.

    Polyethyelene has been developed and tested in the market place over many years for the manufacture of upright water storage containers.

    Polyethylene cannot rot or corrode, and is UV stabilised for Australian & New Zealand conditions. It is also resistant to algae growth as a result of its formulation.

    Water tanks made from polyethylene are available in a range of sizes and designs to suit your needs and to make an attractive addition to your home.

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