Medium Water Tanks
Polymaster’s medium water tank range covers capacities from 7,000L to 13,600L across two profiles – corrugated and smooth wall – making it the right size bracket for family homes, large gardens, small farms, and rural properties with moderate water storage requirements.
FEATURED MEDIUM WATER TANKS
Featured Products
POLYMASTER MEDIUM WATER TANK SOLUTIONS
Browse Our Range of Medium Water Tanks
Available in 17 Colourbond style colours, manufactured from food-grade UV-stabilised polyethylene, and certified to Australian Standards, every tank in this range is made in Australia and built to perform across a wide range of conditions. Available through more than 1,600 agricultural and plumbing stores across Victoria, South Australia, New South Wales, and South East Queensland.
| Code | Product | Capacity | Diameter (mm) | Height (mm) | Inlet Height (mm) | ||
|---|---|---|---|---|---|---|---|
 | PCR7000 | 7,000L Round Water Tank (Smooth) | 7,000L | 2200 | 2200 | 2,020 | Download Drawing |
 | RWT7100 | 7,100L Round Water Tank | 7,100L | 2150 | 2300 | 2,120 | Download Drawing |
 | RWT9000 | 9,000L Round Water Tank | 9,000L | 2500 | 2260 | 2,050 | View Product Download Drawing |
 | PCR10000 | 10,000L Round Water Tank (Smooth) | 10,000L | 2480 | 2350 | 2,170 | View Product Download Drawing |
 | PCR13500 | 13,500L Round Water Tank (Smooth) | 13,500L | 2830 | 2630 | 2,470 | Download Drawing |
 | RWT13600 | 13,600L Round Water Tank | 13,600L | 3100 | 2450 | 2,100 | View Product Download Drawing |
7,000L Round Water Tank (Smooth)
PCR7000
7,100L Round Water Tank
RWT7100
9,000L Round Water Tank
RWT9000
10,000L Round Water Tank (Smooth)
PCR10000
13,500L Round Water Tank (Smooth)
PCR13500
13,600L Round Water Tank
RWT13600
Not sure which tank is right for your property? Our team can help you match the right size and profile to your water storage requirements. Call us on 1800 062 064
Tanks in the 7,000L to 13,600L range are the most commonly chosen sizes for residential homes, large gardens, hobby farms, and small rural properties across Australia. Here is how to match the right capacity to your situation.
Which Medium Water Tank Is Right for Your Property?
MEDIUM WATER TANK APPLICATIONS
Family Homes and Large Residential Properties
A 7,000L to 9,000L tank is the most practical choice for a family home where rainwater will be used for garden irrigation, toilet flushing, and laundry.
At this capacity, a full tank covers a standard four-person household’s non-drinking water needs for several weeks.
For properties with larger roof catchment areas or where mains water supply is unreliable, stepping up to 9,000L or 13,600L provides the buffer needed to get through dry spells without running short.
Rural Properties and Hobby Farms
For small rural blocks and hobby farms, a 9,000L to 13,600L tank provides reliable storage for stock water, vehicle and equipment washdowns, and supplementary irrigation.
This capacity range is also well suited to properties on tank water only, where a single tank is the primary supply for the household and the surrounding land.
Multiple tanks can be interconnected for greater capacity without requiring additional plumbing complexity.
Fire Preparedness
In bushfire-prone regions across Victoria, South Australia, NSW, and South East Queensland, a dedicated medium-capacity tank provides an onsite water reserve for property protection and fire-fighting equipment.
A 9,000L to 13,600L tank, positioned with clear vehicle access and fitted with a suitable pump, is a practical option for property owners who want a meaningful reserve without the footprint of a large-volume tank.
New Residential Builds and BASIX Requirements
Polymaster’s 7,000L tanks are commonly specified on new home builds and renovations in NSW, VIC, and SA to meet BASIX and local council water storage requirements.
The corrugated RWT7100 and smooth wall PCR7000 both satisfy the relevant Australian Standards, and the smooth wall profile is a popular choice for new builds where the tank will be visible from the street or neighbouring properties.
Highest Quality and Standards
Every Polymaster medium water tank is independently certified, Australian-made, and built to perform reliably across residential, rural, and agricultural applications.
Food Grade Polyethylene
Certified to AS/NZS 4020, the Australian standard for products in contact with drinking water.
ISO 9001 Quality Management
Polymaster holds ISO 9001 certification, the international standard for quality management systems.
Australian Made
Designed, engineered, and manufactured right here in Australia, built for our climate and our conditions.
Independently Certified
Certified to AS/NZS 4766:2020 for polyethylene storage tanks.
WHY CHOOSE POLYMASTER
Australian-Made Medium Water Tanks Built to Last
Polymaster has been supplying Australian homes and properties with quality water storage for over 30 years. Every tank in the medium range is manufactured from food-grade UV-stabilised polyethylene, certified to AS/NZS 4020:2018 and AS/NZS 4766:2020, and designed to perform reliably across the full range of Australian conditions.
One-piece construction means no joins, seams, or part lines. A self-supporting roof design requires no internal support poles. Double-strength UV+ resin protects against the harsh Australian sun across the full design life of the tank. These are not optional upgrades – they are standard across every Polymaster tank.
FEATURE POINTS
Why Choose Polymaster Medium Water Tanks
Here is what sets Polymaster apart from other tank manufacturers in this size range.
One-Piece Construction
No joins, no seams, no part lines. Every Polymaster tank is manufactured in a single piece for maximum structural strength and long-term leak resistance.
Self-Supporting Roof Design
No internal support poles or beams. Our self-supporting roof design prevents visible sagging over time, maintaining structural integrity and appearance for decades.
Double Strength UV+ Resin
Our tanks are manufactured with double-strength UV+ resin, providing ultimate protection against the harsh Australian sun across the tank’s full design life.
Extra Thick Walls
Extra-thick walls provide maximum strength, built to withstand harsh Australian weather conditions across the tank’s full design service life.
10,000 LITRE WATER TANKS
The 10,000L Water Tank: A Popular Choice for Australian Properties
The 10,000L water tank is the most commonly specified size in this range for Australian family homes and small rural properties. It provides enough storage for reliable garden irrigation, household backup supply, and stock water on a small acreage, without the footprint or delivery complexity of larger tanks.
Polymaster’s 10,000L offering is the PCR10000, a smooth wall tank with a 2,480mm diameter and 2,350mm overall height. It carries a 15-year warranty and is available in 17 Colourbond style colours. Its compact diameter makes it a practical option for properties where space alongside a shed, fence, or outbuilding is limited.
What can 10,000 litres cover?
As a practical guide: a 10,000L tank provides a standard two-to-four person household with several weeks of non-drinking water for toilets and laundry. For garden irrigation, it covers a large established garden through a dry period. For a small farm, it provides stock water and washdown capacity across an average week. Pairing with a second tank extends that cover significantly.
MEDIUM TANKS IN THE FIELD
See Polymaster Medium Water Tanks hard at work in the field.
WATER TANK CASE STUDIES
Trusted by Australian Properties to Deliver These Projects
Polymaster’s medium water tanks are manufactured to the highest quality standards, independently certified, and trusted by homeowners, farmers, and rural operators across Australia.
DELIVERY AND DISTRIBUTION
Delivery Across Victoria, South Australia, New South Wales, and Queensland
Zone 1 – Free Delivery
Our Zone 1 coverage includes Victoria, Southern NSW, South Australia, South East Queensland, and North East NSW.
- Within this zone, free delivery applies for orders over 13,000L.
- For smaller orders, free delivery is available to your nearest local Polymaster distributor store, with direct site delivery available for an additional fee.
- Contact us for current pricing.
Zone 2 – Delivery Charges Apply
- For locations outside Zone 1, charges apply based on your location.
- Contact our team for a tailored quote.
Preparing Your Site
Truck and trailer clearance required is 19 metres long, 5 metres high, and 3.5 metres wide. Check for low branches or powerlines on your access route and ensure your gate and entrance can accommodate a 19m truck and trailer. A flat, clear area of at least 5 metres by 5 metres is required for unloading. Our logistics team will contact you approximately seven days before delivery to confirm your address and access requirements.
Have A Question?
Talk to our team. We’ll help you match the right large water tank size and profile to your property, water storage requirements, and budget.
MORE WATER TANK SOLUTIONS FROM POLYMASTER
Explore Our Full Range of Water Tank Solutions
Our medium tank range is one part of what Polymaster offers. If you need high-capacity storage for a large rural property, a compact slimline tank for a tight urban block, or underground storage, we have you covered.
Round Water Tanks
Polymaster’s full round tank range covers 200L to 50,000L across corrugated and smooth wall profiles. For properties that need more than 13,600L, the large round range extends to 31,700L and 50,000L in corrugated profile.
View Range
Slimline Water Tanks
For narrow side yards, fence lines, and tight urban blocks, our slimline range delivers solid capacity without taking up yard space, available from 600L to 5,000L in 22 Colourbond style colours.
View Range
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.
View Range
FAQs
Frequently Asked Questions
Everything you need to know about Polymaster’s medium water tank range, from sizing through to delivery and maintenance.
What size water tank do I need for a family of four?
For a family of four using rainwater for garden irrigation, toilet flushing, and laundry, a tank in the 7,000L to 9,000L range is a practical starting point. If your property has a large roof catchment area and you want meaningful backup for dry periods, stepping up to 9,000L or 13,600L gives you greater buffer. For properties on tank water only, 13,600L is the minimum recommended size for a full household supply.
What is the difference between the RWT corrugated and PCR smooth wall tanks?
The RWT corrugated range features the traditional ridged wall profile that provides structural strength and a classic rural aesthetic. These tanks carry a 20-year warranty. The PCR smooth wall range has a clean, contemporary profile better suited to modern residential builds where aesthetics matter. PCR tanks in this size range carry a 15-year warranty. Both ranges are manufactured from food-grade UV-stabilised polyethylene and certified to the same Australian Standards.
How long will 7,000 litres of water last?
That depends on how the water is used. For garden irrigation on a standard residential block, 7,000L covers several weeks of watering during a dry period. For household backup use, including toilets and laundry for a family of four, 7,000L typically lasts two to three weeks. For a small farm with stock water requirements, 7,000L covers a shorter period depending on the number of animals. A 7,000L tank is best treated as a supplement to mains supply rather than a standalone primary source.
How much does a 10,000 litre water tank cost?
Pricing varies depending on the profile (corrugated or smooth wall), your location, and any pump or accessory packages included. The PCR10000 smooth wall tank starts from approximately $2,570 according to current product page pricing. For a current delivered price to your property, use the instant quote tool above or call our team on 1800 062 064.
What are the dimensions of a 10,000 litre water tank?
Polymaster’s PCR10000 smooth wall round tank has a diameter of 2,480mm, an overall height of 2,350mm, and an inlet height of 2,170mm. All measurements are approximate. If you are assessing site access or placement clearance, contact our team to confirm current dimensions and delivery requirements for your location.
Can I link multiple medium tanks together?
Yes. Every Polymaster round tank can be interconnected with other tanks to increase your total holding capacity. This is a practical option for rural properties where a single tank may not provide sufficient storage, but space or budget constraints make a single large-volume tank impractical. Contact our team to discuss the right configuration for your property.
Which water tanks last the longest?
The RWT corrugated rainwater tank range carries a 20-year warranty, making it the longest-warranted option in Polymaster’s medium tank range. The PCR smooth wall range carries a 15-year warranty. With regular maintenance, including periodic checks of the inlet strainer, overflow, and outlet, Polymaster tanks commonly perform well beyond their warranty periods.