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Monday 8:30am - 5pm Tuesday 8:30am - 5pm Wednesday 8:30am - 5pm Thursday 8:30am - 5pm Friday 8:30am - 4:30pm

Duraplas Tanks

Name: Duraplas Tanks
Address: 9 Robb Street, Alstonville, NSW, 2477, AU
Telephone: 1300 387 275

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Duraplas Tanks

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After 30+ years of innovation and an ongoing commitment to excellent customer service, Duraplas is now one of Australia’s leading water tank manufacturers.

10/11/2026

Stacked up and ready for delivery: modular poly raceway aquaculture tanks.

Raceways are long tanks, and long tanks are awkward to move. That’s the problem this system was engineered to solve. Every component is designed to stack efficiently, and many complete raceway units fit inside a single 20-foot shipping container. That puts remote sites and island operations within reach without the usual freight headache.

Assembly on site is straightforward. The poly legs go down on a flat, compacted surface and the treated timber supports drop in. The raceway section sits on top, with its fl**ge screwed to the legs. The final joins are bolted and sealed with a poly glue system, and then the paddle wheel unit bolts into place.

The standard PR6900 measures a nominal 6900 mm long, 2130 mm wide and 900 mm high, with custom lengths available from 4 to 25 metres. Applications include micro-algae cultivation, coral husbandry and cultivation, and reef restoration projects.

They’re built in Alstonville by a team that has been supplying the aquaculture industry for over 40 years.

Planning a raceway system? Send the team a message.

05/11/2026

One yard, a lot of jobs covered.

From left to right in this line-up:

- Slimline AdBlue StorageTank
- Round Chemical, AdBlue and Diesel Storage Tanks
- a selection of Round Poly Water Tanks in different sizes
- on the far right, a white Truck Tank™ Water Cartage Tank
- out front, two stacked round Aquaculture Tanks

Fuel and fluid storage, water storage, water cartage and fish farming are very different jobs. All of these tanks are rotomoulded in the one place: Alstonville, in the Northern Rivers, where Duraplas has been manufacturing since 1984.

Speccing tanks for a site, a fleet or a farm? Send the team a message.

05/11/2026

Delivery day, and white is the colour pick for this round.

Strapped down on the tray of one of our own trucks, this one’s made the short trip from the mould to the loading yard and it’s next in line to head out the gate.

That’s how it works here. The tanks are made in Alstonville, loaded in Alstonville and delivered by the Duraplas fleet, factory direct. There are no handovers along the way.

With 24 poly tank colours in the range, the choice is wide open. This round, white took it.

Want to know which colours are in the current range? Send the team a message.

04/11/2026

Same footprint, two depths.

These are our poly reedbeds, side by side. The 2,300-litre and the 3,700-litre both measure a nominal 3000 mm long by 1900 mm wide. The difference is depth: 570 mm on the shallower vessel, 870 mm on the deeper one.

A reedbed is the vessel at the heart of a constructed wetland. That’s an engineered system that copies the way natural wetlands filter water, using wetland plants, gravel or sand media and beneficial microbes to treat wastewater, greywater or stormwater. It’s typically installed downstream of a septic tank or other primary treatment unit.

We make the vessel. The media, plants and plumbing come from the professional designing the system. Every reedbed leaves Alstonville with two 100 mm Wallace Seals, so the plumber can set up the pipework to suit the site.

For sewage or blackwater treatment, the reedbed needs to form part of a complete system accredited by NSW Health. That accreditation sits with the system supplier or installer.

Plumbers and wastewater designers: send us a message for pricing and sizing on your next job.

02/11/2026

🚛 2026 TANK DELIVERIES – FULLY BOOKED! 🚛

Due to high demand, our delivery schedule for the remainder of 2026 is now fully booked!

We're still taking orders, however all new tank deliveries will be scheduled for 2027.

IN A TIGHT SPOT?

If you're in urgent need of a water tank, please still reach out! We understand that sometimes things can't wait, and while our delivery schedule is fully booked, we'll see what we can do to help.

A big thank you to all our customers for your continued support!

📞 Planning for 2027? Contact the Duraplas team today to get your order organised!

20/10/2026

This is one of our slimline water tanks coming straight off the mould.

The moment the mould opens, the shape of the finished tank is already locked in.

There’s a lot riding on this stage: the wall thickness and finish need to be perfect.

A behind-the-scenes look at the manufacturing step most customers never see.

15/10/2026

Hard to beat a morning like this one - open road, clear sky, and a load of our most popular size heading out to its new home.

The 22,700L upright is the tank we sell more of than any other, and seeing it loaded up against the stunning Northern NSW countryside is a pretty good reminder of why we do this.

Wherever you’re calling from, the country side or the big smoke, we have delivery covered.

Call the team on 1300 387 275 if you have a big order or tricky delivery to discuss.

14/10/2026

Slimline tanks, lined up and ready to go.

Built for the tight spots - side passages, boundary lines, anywhere a round tank just won’t fit - without giving up capacity you actually need.

This row alone shows just some of our range: different sizes, different colours, same build quality running through every one of them.

If space is the problem on your block, this is usually where the conversation starts.

Call the team today on 1300 387 275

14/10/2026

We're hiring!

We're looking for someone to join our team at Duraplas Tanks in Alstonville.

The role involves a mix of sales, customer service and general office duties, so we're after someone friendly, reliable and happy to lend a hand wherever needed.

It's a casual position to start, with the opportunity to become permanent.

If you think you'd be a good fit, send your resume through to [email protected].

Feel free to share or tag someone who might be interested!

13/10/2026

Two very different products, one truck, one trip.

This load pairs a round squat water tank with an Aussie Plunge Pool™ Infinity-8 - both built in-house at Alstonville and heading out factory direct.

That’s the advantage of manufacturing everything under one roof: whether it’s water storage or a pool build, it comes straight off our production line and lands right at the customer’s front door. No middleman, no mark-up for the sake of it - just the product you ordered, expertly made and delivered with care. Every single time.

Address

9 Robb Street
Alstonville, NSW
2477

Opening Hours

Monday	8:30am - 5pm
Tuesday	8:30am - 5pm
Wednesday	8:30am - 5pm
Thursday	8:30am - 5pm
Friday	8:30am - 4:30pm

Telephone

1300 387 275

Website

http://www.duraplas.com.au/

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