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  • Water Tanks

    Our Water Tank Range

    3000L CT 660

    Round Tanks Under 10000L

    Australian made heavy duty round water tanks. All round tanks come with a 25 years warranty.

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    10000L CT 2200 round water tank

    Round Tanks Over 10000L

    Larger tanks for a wider range of applications such as residential or commercial needs.

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    SL3000 slimline water tank 3000 litres

    Slimline Tanks

    Space saving slimline design made from BPA free food grade, UV stabilised polyethylene.

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    CT1100 TALL_REEFE_RM5096

    Tank & Pumps Packages

    We have a range of tank and pumps packages to suit different applications and needs.

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  • Industrial

    Our Industrial Product Range

    CT3300 15000L Round Molasses Tank

    Liquid Feed

    Built tough to SG1.5 rating for safe, long-lasting storage. Each tank includes a 455mm screw lid and a 3 inch outlet.

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    CT1100 5000L Round ADBlue Tank

    AdBlue & Diesel Tanks

    Durable 5000L and 10000L tanks with included inlet/outlet fittings and a clear sight gauge for easy monitoring.

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    CT5000 22730L Liquid Feed Tank

    Liquid Fertiliser

    Durable SG1.5 rated tanks, delivered with poly welded fittings and ready for use, available in a wide range of sizes.

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    Storage Silo Banner

    Silo

    Industrial Silos from 1CMt to 30CMt suitable for a range of applications including the storage of grain, molasses, or fertilser products.

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    Water Treatment / Storage Tanks

    Custom fit water tanks, ideal for wastewater, bore water, and water treatment solutions.

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    Chemical Dosing / Storage

    Chemical resistant polyethylene tanks rated SG1–SG2, ideal for safely storing chemicals, including hazardous liquids.

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    Poly Welded Fittings

    HDPE industrial water tank fittings and poly welding accessories, custom installed for reliable wastewater, bore water, and treatment applications.

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  • Agriculture

    Our Agriculture Product Range

    200 Litre Trough

    Troughs

    Our food grade, UV treated troughs are perfect for feed and water storage for animal husbandry.

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    Cup and Saucer 3000L

    Cup and Saucer

    Popular and economical water storage solution for animal husbandry and livestock.

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    Cartage Tank 550L

    Cartage Tanks

    Light and durable cartage tanks for water carting, water storage and chemical application.

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    Others

    Dog Kennels and Fence Feeders available in a range of colours.

    Dog Kennel
    Fence Feeder
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Buying Water Tanks

6
  • Preparing Your Roof Catchment Area for Rainwater Harvesting
  • How to Avoid Problems with Your Poly Water Tank: Examples of Poor Tank Installation and Misuse
  • How Can I Tell a Quality Water Tank from a Cheap One?
  • Using a Dry System to Connect Pipework to Your Rainwater Tank
  • Using a Wet System to Connect Pipework to Your Rainwater Tank
  • Choosing the Right Water Tank for Your Available Space

Water Tanks Installation

1
  • Choosing the Right Water Tank for Your Available Space

Water Tank Maintenance

2
  • Protecting Your Rainwater Tank Against Mosquitoes
  • Maintaining Water Quality in Your Rainwater Tank
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  • Choosing the Right Water Tank for Your Available Space

Choosing the Right Water Tank for Your Available Space

2 min read

When searching for the right water tank, an important consideration is the available property space you wish to dedicate to storing water. Clark Tanks offers a range of rainwater tanks to help satisfy property owners no matter your space requirements. This article will look at some options to consider when buying a tank to meet specific space requirements.

Location of Your Tank #

Your first step before looking for a rainwater tank solution, should be to identify appropriate locations. While connecting a downpipe to a storage tank located directly beneath it might be easier, this can also potentially limit your options. It is possible to situate a water tank anywhere on your property, although ideally it is good to have it higher which requires less pump power. If you wish to avoid ugly above ground pipes (a “dry system”), an alternative is to run pipes underground to deliver harvested rainwater into your tank (a “wet system”).

So then, perhaps a very large round tank might not go well beside your house, but then, across from a path, or maybe further up the back of your house with surrounding gardens would be better. Then again, maybe all you need is a lower capacity slimline or two which could comfortably fit beside your house. There could be multiple workable solutions, so let’s explore different types of tanks and their sizes.

Round Tanks #

The traditional looking round water tank, of which Clark Tanks manufactures a unique ribbed design that has greater appeal while at the same time strengthening the tank, is often the only tank to get when looking at individual water storage greater than 5,000 litres.

With more popular sizes, such as 5,000L (1,100 gallon), 10,000L (2,200 gallon) and 22,700L (5,000 gallon) round tanks, you can purchase either a taller tank with thinner diameter, or a lower “squat” tank that is wider. Consider the following sizes:

  • 5,000L Squat is 1.8 metres high and 2.1 metres wide, compared to the taller 5,000L which is 2.2 metres high and 1.9 metres wide.
  • 9,500L Squat is 1.7 metres high and 3 metres wide, compared to the taller 10,000L which is 2.1 metres high and 2.6 metres wide.
  • 5000 Gallon (22,700L) Squat is 2.7 metres high and 3.7 metres wide, compared to the taller 5000 gallon DNR model which is 2.9 metres high and 3.5 metres wide.

As an alternative solution, it could be that two or more smaller tanks would better fit better in a narrower space than one very large tank. For example, you might have a side strip on your property, but a 3.5 metre tank width is too much. Installing two 10,000 litre tanks would shave off approximately 1 metre and present a better option. Added benefits to a multiple tank setup is that you have redundant storage as backup should one tank fail and better water quality.

Slimline Tanks #

Slimline poly tanks are found in capacities of 5,000 litres or less. Our slimline tanks range in width from 680mm to 1,050mm.

As the name suggests, they have a narrower width and are wider length. They are the perfect solution for placing beside your house, along a fence line or in thinner spaces. Should higher water storage capacities be required, then two or more can be linked together provided you have the space.

Mix and Match Tanks #

You might find that a combination of tanks works best for your property. For example, perhaps a slimline and underground tank, or a larger round for rainwater and underground for any overflow and stormwater.

Clark Tanks poly tanks are available in a range of sizes and shapes to help meet your space requirements. Rather than go through each tank one-by-one, you can find complete tables from our Water Tank Specifications page.

Updated on April 2, 2025
Table of Contents
  • Location of Your Tank
  • Round Tanks
  • Slimline Tanks
  • Mix and Match Tanks
For All Your Water Tank Needs

Manufacturing since 1997, our products are designed and built to last in tough Australian conditions. If you need a quality water tank, our friendly team is ready to help.

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