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The Thickest, Time-Tested Poly Water Tanks to Ever Exist in Rural WA

Manufactured & Designed by Rural Aussies for Rural Aussies, reliable Coerco rainwater tanks help put seasonal goals within your reach, just what every Australian agriculture business needs.

Coerco — Reliability in an unpredictable world

Australian farming suffers no shortage of challenges, and so many circumstances are out of your control.

This is why we exist—to help lessen your worries. Because making quality water storage tanks is something we, at Coerco, can and fully control.

  • COERCO is the only WA poly tank manufacturer based in Rural WA supporting WA farmers.
  • For over 27 years, Coerco has supplied Western Australia with a wide range of water tanks for sale, from slimline tanks to corrugated and flat walled water tanks, consequently strengthening our rural knowledge to benefit farmers.
  • Holds the spot for being the only manufacturer to retain internal quality control from start to finish, helping keep the price of our water tanks reasonable.
  • To further our support, we’ve made delivery easy with our own fleet of delivery vehicles and experienced rural-based drivers for rural deliveries.
  • Our tanks are thicker which contributes to their longevity.
  • A wide range of large size water tanks are available to keep up with large spraying programs.

Remain operational!

Whether you require a single tank or a more complex system for storing rainwater, our wide range of poly water tanks opens up many possibilities so you can boost productivity and maximise your profits.


Pick a product group below.

premium corrugated tanks
premium flat walled tanks
slimline water tanks

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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?

Get in touch today for a no-obligation chat and free quotation!

1800 860 851
We’ve Garnered 200+ Reviews And Counting With a 4.9 Rating!

" 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 buy another ... »

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 have a ... »

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 i needed ... »

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 job. "

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 have one ... »

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. "

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 getting an ... »

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 well. Great ... »

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 made ... »

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 as well. ... »

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 is good and ... »

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 no dramas ... »

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 service is ... »

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. " »

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 to ... »

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 " »

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 busting tanks ... »

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 I said ... »

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 problems ... »

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 other ... »

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 them " »

Andrew Link

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

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. "

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. "

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 "

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 out by a ... »

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. Quality ... »

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 market. The ... »

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 Plastics" tanks we ... »

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 I wanted ... »

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 helpful at ... »

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 the only ... »

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 purchase ... »

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 members from ... »

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 the last ... »

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, excellent ... »

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 which made ... »

Andrew Maitland
Parryville, WA

Available Now From Your Local Rural Store!