engineered poly products

Engineered Poly Products

A Comprehensive Range To Suit All Requirements

With a 25 year history in supplying water storage products to the farmers of Western Australia, COERCO is the industry experts, with the skills and knowledge to produce high-quality products at unbeatable prices.

Thanks to our in-house polyethylene processing facility, COERCO is the only manufacturer to retain internal control of quality from start to finish. We’re proud to be an ISO9001:2015 certified company, highlighting our commitment to outstanding workmanship across all our products.

We’re so confident that our water tanks and associated products are of the highest quality, we offer a 20-year repair or replace warranty guarantee on our Premium Corrugated and Premium Flat Walled water tank models.

Polyethylene water tanks are a great choice:

  • One-piece construction ensures no weak spots
  • Flat-walled design combines strength with a sleek, modern finish
  • UV stabilised to withstand the harsh Australian climate
  • Manufactured in accordance with Australian standards
  • Made using the best linear low-density food grade polyethylene
  • Available in a wide range of sizes and colours to suit all applications
  • Comes as a complete set with all required accessories
  • Lightweight and easy to transport and install
  • Unbeatable quality and value for money

If you’re not sure which of our products would best suit your needs, try our online Tank Selector Tool.

Learn More About Our Products

Click on each one of the poly water tanks below to learn more about the specific benefits of our Premium Flat Walled Water Tanks:

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12 Critical Mistakes People make When Ordering Water Tanks!
  • Choosing the wrong size of water tank
  • Not sizing your tank to match your gutter
  • Ignoring specific details involved in installation
  • Not checking the external protection capabilities of the water tank
The Highest Rated Poly Water Tank Manufacturer... By Customer Reviews!

" Great team with efficient delivery that places tanks in the spot you want. Strong tanks which will last in the environment we throw at it. Won't ... Read More

Murray McDonald
Kellerberrin, WA

" Purchasing a water tank for the Kendenup fire brigade, I received excellent service from all members of the Coerco group with whom I liaised. They ... Read More

Brian Appleby
Kendenup, WA

" Had a 50kl tank delivered last week. Some issues with getting road train into my block. Michael the driver was excellent in making sure i got what ... Read More

Joe Kelly
Perth, WA

" I had two 32,000 litre tanks ordered and delivered and I'm very happy with them and the delivery. "

Rick Bee
Narrogin, WA

" Amazing service! delivered faster than expected, exactly as ordered and all wrapped and in perfect condition. Definitely recommend COERCO, great ... Read More

Warren Arnold
Kalamunda, WA

" I had a fantastic experience with these guys. I ordered 4 x 3,000 litre slim line tanks, they delivered to the Perth metro in record time. I did ... Read More

Damo Troy
Perth, WA

" As an agent for Coerco they are so easy to deal with making it even easier for the customers. Nothing is an issue for them. " Read More

Craig Bassett - Elders Ltd
Geraldton, WA

" Fantastic Experience. The service was 10 out of 10, and the process was seamless from quote through to delivery. Was even more impressed after ... Read More

Darren Tindal
Albany, WA

" Coerco have always been our go-to supplier for poly tanks. Good quality tanks. We've requested to customise the tank fittings and were executed ... Read More

Jerica Marise Razon
Malaga, WA

" Prompt delivery, quality product, good advice. Water tank and septic system. "

Frank The Sheepdog
Katanning, WA

" Great service for my project. Delivery drivers very professional and product first class. "

Adam Van Nellestyn
Busselton, WA

" Rain water tanks for our house, best quality,exact colour, prompt delivery. Carrier very helpful on delivery. Just up the road for great locally ... Read More

Phyllis Brosnan
Toodyay, WA

" Really happy with the service & communication we received from Coerco throughout the whole purchase and delivery and not forgetting the great tanks ... Read More

Cy Bettjeman
Brunswick Junction, WA

" We have purchased Coerco Products over the last 15 years from troughs to tanks and are completely satisfied with all of the products. The service ... Read More

Phillip Tomlinson
Wanerie, WA

" Product is excellent, price was right, and the fella who dropped the tanks off was a good bloke, all in all a can do no fuss company. You'll have ... Read More

Louie Hughes
Munglinup, WA

" This is tank number 6 from Coerco (formerly rapid plastics) over the last 20 years and I won't go anywhere else for a quality tank. The customer ... Read More

David Stalker
Bindoon, WA

" Just bought a couple of 25000 litre tanks at a great price and I got a great product. Thanks for the prompt delivery. Keep up the good work. " Read More

Paul Screaigh
Wangara, WA

" We regularly deal with Coerco for tanks, leach drains and a range of other products. I find them to be easy to deal with, helpful, quick to respond ... Read More

Rob Hales
Bullsbrook , WA

" Had two 32,000 litre tanks delivered by Alex from Coerco this morning. Great service from a great bloke made the job quick and easy. Cheers " Read More

Dave Bantock
Mogumber, WA

" We have been very happy over many years with Rapid Plastics & now Coerco poly tanks & troughs. We have never had any problems with splitting or ... Read More

Kenneth John Hall
Meekatharra, WA

" The water tank was delivered on time and for the price as agreed. "

Jonce Dimoski
Perth, WA

" Fast friendly and an excellent product, will definitely be using these guys again for our next tank. "

Monique Wojtkiewicz

" I found the people at Coerco extremely helpful and patient with my changing thoughts on what we really needed. Jane took the time to listen to what ... Read More

OneArmed Bandit

" I purchased an RT9000S poly water tank from Coerco (sold through Tuckeys Mitre 10 in Pinjarra) and I am very happy with the service and product. No ... Read More

David Howell
South Yunderup, WA

" I am so far very pleased with Coerco’s service. Living in a semi rural area, there was barely a wait on the delivery of our water tank compared to ... Read More

Lucy McAuliffe
Geraldton, WA

" Alex was great with his help when the tank came, even though there was a miss understanding of the delivering date, but will get another tank from ... Read More

Andrew Link

" Coerco continue to provide friendly service to the highest professional standards. Product explanation, organising delivery well in advance and ... Read More

Stuart McAlpine
Buntine, WA

" Very happy with the customer service from office staff to delivery driver, we have several Coerco tanks and find them to be a quality product. " Read More

Jaz T

" Good product. Good price. Very pleased. Ideal size for shed. Tank full now, pump set up, wait for summer. "

Darren Anderton
Mundijong, WA

" The Kalamunda Club was very pleased with the service from Coerco. The tank was delivered on time and the driver was friendly and helpful. " Read More

Roy Walker
Kalamunda, WA

" Great company to deal with. Friendly staff and I was given great advice to select the right tank. Delivery was prompt, exactly as expected " Read More

Denise Shedley
Fremantle, WA

" I have purchased three tanks from Coerco in recent years. A great product and diligent support staff. Delivery to my property in all cases carried ... Read More

Lindsey Densley
Bindoon, WA

" I have just purchased a 50,000ltr water storage tank. Very happy with the tank! It was delivered on time, and fitted up exactly as I asked for. ... Read More

Stephen Ray
Dalwallinu, WA

" Delivery and install was performed very well. Tank looks good and hopefully many years of use ahead. Can recommend "

Ros Shaw
Maya, WA

" The team at Coerco we’re very professional in there dealings with me when I purchased my 2 poly water tanks, 32,000L. Pricing was best on the ... Read More

James Smith
Torbay, WA

" A tremendous company to deal with, we recently got 2 more 7000 gallon tanks to replace an old concrete one, this takes the total of "Rapid ... Read More

David Nield
Boyup Brook, WA

" I had a great experience the tanks were delivered much sooner then I thought and the driver was wonderful and very good at putting the tanks where ... Read More

Pippa Prescott
Northcliffe, WA

" We recently purchased a 28000ltr tank including delivery from Coerco. From the point of purchase to the actual delivery, Coerco were more than ... Read More

Kelvin - South West Removals
Davenport, WA

" The service sets them apart. I rang three different tank suppliers look to spend approx. $8k on water tanks about 7 months or so ago. Coerco were ... Read More

Ash Cuz
Carlotta, WA

" Excellent experience with this company. Product is good and delivery and service is second to none. Would definitely recommend to anyone wanting to ... Read More

Lindsay Oldfield
Cannington, WA

" Good quality tanks delivered promptly "

Alan Blight
Carabooda, WA

" Best price on the market. Turned up quicker than expected. We will be ordering another before next winter. "

Sparta 1

" Our first purchase with the Coerco Group was at Wagin Woolarama 2019. Coerco offered the best price for the product we were wanting. The staff ... Read More

Lyn Kennedy
Newdegate, WA

" More than happy with professionalism and expertise of not only the office staff but the delivery drivers as well. We've purchased 4 tanks within ... Read More

Wesley Benton
Latham, WA

" Coerco helped us to choose from their wide range of tanks and delivered promptly. "

Susanne Levett
Carnamah, WA

" Great service again - delivering two 50,000 litre tanks. "

Elliot Taylor
Greenwood, WA

" Excellent service from the time we request a quote, to production, delivery schedule and even after they arrive. And as far as the product goes, ... Read More

Roslyn Powell
Karratha, WA

“ The delivery of the three tanks went really well, on time as promised, Alex was extremely helpful and great to work with. All done before sunset ... Read More

Andrew Maitland
Parryville, WA

“ It was an extremely challenging delivery. Anthony patiently and painstakingly got the tanks to where they needed to go. We can't thank him enough ... Read More

Tim Haydon

Ready To Get A Quote?

Would you like to improve your farm’s water planning, efficiency and productivity? Are you ready to invest in products that will last for decades and revolutionise your everyday operations?

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