engineered poly products

Engineered Poly Products
How much liquid storage does your spraying programme require?

As part of an efficient spraying operation you ideally need an on-site liquid storage capacity of 500,000 litres

As Featured In
The Highest Rated Poly Liquid Storage 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

" We have been very happy with the polyethylene septic tanks provided by Coerco, and we now use these as standard on all our new homes. Previously we ... Read More

Andrew Sharpe - Stallion Homes
Northam, 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

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

Adam Van Nellestyn
Busselton, 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

" Extra special thanks to the team at “Coerco”. I bought a full septic system and leach drains from them for my 40 acre property in Gingin. I can’t ... Read More

Sarah Kelly
Gingin, 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

" 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

“ 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

" Coerco’s staff were friendly and extremely helpful from the initial phone call enquiry right through to the delivery and follow up contact. ... Read More

Brad Antulov

“ 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

“ Very happy with our recent purchase from Coerco. Will be recommending this company to anyone needing water tanks: top quality, great price, good ... Read More

Martin King, Austen Partnership

“ Just had a delivery by Hayden to Gidgegannup. Driver was Excellent, Friendly, Efficient…. Great Service. Drop off was slightly tricky but was no ... Read More


Most Respected Water Tanks -
Unmatched Savings


Product available from your favourite local rural store!
Some Numbers Around What We Do
Years Of Combined Industry Experience
Tonnes of Plastic Recycled
Products Delivered
Litres Of Water Stored


For the last 25 years, COERCO has been helping farmers from all areas of agriculture and livestock management achieve success with higher efficiencies, product yields and operational improvements by the use of their products.

Here are just a few great reasons why our customers choose us:

  • icon 6We have the most supportive network of authorised re-sellers of COERCO products in the industry. Our key distributors are an integral part to the high level of support we can offer our customers. These key distributors are in all major township areas of the agricultural regions throughout Western Australia, South Australia & Northern Territory. We also have representation in Queensland, New South Wales & Victoria.
  • icon 4We are the highest rated water tank manufacturer in Australia thanks to our glowing customer reviews across our online platforms. Our happy customers love to sing our praises when it comes to the quality of our products, our proactive customer service, our expert delivery team and our unbeatable after-sales care.
  • icon 420-year REPAIR or REPLACE Warranty Guarantee on our Premium Tank Ranges. This is not pro-rata; if your tank suffers any defect or fault caused by poor workmanship or inferior quality we will repair it free of charge or replace it with a brand new tank. Our Premium water tanks are the only poly water tanks available in Western Australia that come with this peace of mind guarantee.
  • icon 4COERCO is an accredited company holding certification to global management standard ISO9001:2015 and also product certification to AS1546.1 for a range of septic and wastewater products. This involves an external third party, SAI Global auditing the company's processes, testing procedures and results required to meet these strict quality and consumer satisfaction based standards.
  • icon 4We create our own virgin polymer material in our in-house hexene polyethylene processing facility. This ensures that we maintain internal quality control from start to finish. We are the only WA Poly Water Tank manufacturer to do this.
  • icon 4Our expert team has over 150 years of combined industry experience. We are a world-class team of individuals whose experience and knowledge gives us a unique insight into customer issues. We are able to provide practical, innovative and cost-effective product solutions to meet our customers’ needs.
  • icon 4We have our own fleet of delivery vehicles, with the capability to deliver throughout Australia and further afield. This means we can deliver when it suits our customers, not according to anyone else’s schedule. We also have the largest distribution network throughout Western Australia.

Whether you’re purchasing a single tank or investing in a large-scale project, you can rest assured that COERCO products and service will never let you down.

High Grade Materials
Free Delivery
Manufacturer Warranty
Quality Assured

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