Water Tanks
Whether you need space-saving slimline storage for a residential block or high-capacity round tanks for a large-scale property, Polymaster provides certified, one-piece moulded solutions designed for life.
- Food Grade
- Quality Assurance
- Product Certification
FEATURED WATER TANK PRODUCTS
Our Most Trusted Water Storage Solutions
Reliable, certified, and easy to install. Explore the water tanks that have become the industry standard for quality and longevity.
Round Water Tanks
High-capacity storage from 1,000L to 50,000L. One-piece build with no seams or joints to fail.
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Slimline Water Tanks
Maximum storage in minimum footprint. Ideal where a round tank won’t go.
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Small Water Tanks
Compact storage for the garden, the shed or the workshop. Easy to position and connect.
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From National Ag Brands to Independent Rural Stores, Australia Trusts Polymaster
BROWSE BY TANK TYPE
Browse By Tank Type
Polymaster’s water tank range spans every property type and application – from compact urban blocks to large-scale rural and commercial sites. Whatever your space or storage need, there’s a tank profile built for it.
Round Water Tanks
Available from 200L to 50,000L, Polymaster’s round poly water tanks are the most versatile above-ground storage solution for rural, residential, and industrial applications across Australia.
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Slimline Water Tanks
For narrow side yards and tight urban blocks, our slimline range delivers serious capacity without taking up serious space.
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Rainwater Tanks
For properties looking to harvest rainwater, Polymaster’s rainwater tanks collect rainwater from your roofs and gutters, and allow for efficient water storage.
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Underground Water Tanks
For properties where above-ground storage is not an option, our underground range offers 3,300L and 5,000L capacity completely out of sight, with the smallest environmental footprint in the industry.
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WATER TANK APPLICATIONS
Browse By Application
From household rainwater collection to civil stormwater management, find the right water tank solution for your specific application.
Household Tank Pump Packages
Preconfigured tank-and-pump combinations for toilet flushing, laundry, and general household use.
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Garden Tank Pump Packages
Tank and pump packages sized for garden irrigation and outdoor watering.
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Retention & Detention Tanks
For civil, stormwater management, and OSD applications, Polymaster’s retention and detention tanks are engineered to council and development specifications.
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Pipeline Tanks
Purpose-built round tanks for pipeline-fed water supply to stock troughs and farm systems, from 9,000L to 50,000L.
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Water Tanks Accessories
Pumps, filters, level indicators, and covers to keep your water tank system running reliably.
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Rainwater Tanks
Durable rainwater tanks for household water collection and harvesting, storing rain runoff for everyday domestic use across round, slimline, and underground styles.
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FEATURE POINTS
Highest Quality & Standards
Durable Products
Manufactured using premium UV-stabilised polyethylene, built to withstand Australia’s harsh climate conditions.
UV Resistant
Every Polymaster tank is UV-stabilised to resist degradation under harsh Australian sun exposure.
Australian Made
Designed, engineered, and manufactured in Australia – built for our climate, our conditions, and our standards.
25-Year Design Life
Polymaster water tanks are backed by a 25-year design life, giving you decades of reliable water storage.
Water Tanks For Your Operations
WATER TANKS CASE STUDIES
Trusted by Australian Businesses to Deliver These Projects
Polymaster’s water tank range is manufactured to the highest quality standards, holds product certification from an independent testing authority, and is trusted by some of Australia’s most recognised organisations and operators.
Why Choose Polymaster Water Tanks
Every Polymaster water tank is manufactured in Australia to the highest industry standards, backed by decades of experience and built to perform in the toughest conditions. Here’s what sets our tanks apart.
Backed by Long Warranties
- Long manufacturer warranties on every tank in the range
- Certified to AS/NZS 4766:2020 for polyethylene storage tanks
- Peace of mind backed by decades of Australian manufacturing
Reliable Delivery, Australia-Wide
- Delivery across Victoria, South Australia, NSW and Queensland
- Site access and logistics confirmed before your tank arrives
- Regional and rural delivery handled as standard, not an exception
Can't Find The Tank You Are Looking For?
Talk to our team. We’ll help you match the right size water tank solution to your operation.
FAQs
Frequently Asked Questions
What size water tank do I need?
It depends on your intended use and roof catchment area. As a guide: 2,000L-5,000L suits toilets, laundry and small gardens; 10,000L-22,500L suits full garden irrigation and general household use; 31,700L-50,000L suits rural properties, livestock, and off-grid supply. Speak to a specialist for a recommendation specific to your property.
Do I need council approval for a water tank?
Most councils exempt smaller above-ground tanks from approval, but requirements vary by state, council, and tank size. Confirm with your local council before installation.
How long does delivery take?
Delivery timelines vary based on tank size, configuration, and stock availability. Contact our team for a delivery estimate for your location.
Can I drink water stored in a Polymaster tank?
Yes, with the correct filtration and treatment systems installed. Speak to our team about the right setup for potable use.
What base do I need for my water tank?
A compacted, level base is required – specifications vary by tank size. Full base requirements are available in our installation guidance.