engineered poly products

Engineered Poly Products

Coerco — Reliability in an unpredictable world

Septic failures are agonising, costly and difficult to pinpoint.

So, we made sure our septic tanks for sale won’t cost you trouble. It’s time for you to reap its many benefits:

  • Manufactured to meet Department of Health approvals:
    Western Australia, Northern Territory, and South Australia
  • Certified to AS1546.1 for a range of septic and wastewater products.
  • Lightweight. Easy to transport, install and use.
  • Made of the highest quality polyethylene for durability.
  • Coerco septic tanks come as a complete kit with a lid, inlet and outlet fittings.
  • Septic tank size come in a variety to suit your requirements.
    Whether you need a small septic tank or an industrial size large capacity system, a poly septic tank can do it better.

Minimise Septic Failure!

Coerco septic tank and leach drain systems are fast becoming the product of choice over other materials, with good reason.

Pick a product group below.

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.
Call us: 1800 860 851 or 1800-646-277 | Email us:
Or find your nearest distributor here
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Get Your FREE Starter Pack Guide to Septic Systems


Learn about the fundamentals of septic systems from septic tank size, leach drain length, trafficablility, underground depth, and more.

Leach Drain System

Learn the unique benefits of our recycled leach drain systems. Environmentally friendly, Surprisingly Effective

Septic Tank Features

Discover what makes Coerco septic tanks the wastewater solutions of choice.

In-Depth Comparison

See the full spectrum of the qualities, benefits and drawbacks of each type of septic material.

The Highest Rated Poly Septic Tanks Manufacturer... By Customer Reviews!

" Whilst proceeding through a home upgrade, we were directed to upgrade our 2 tank septic system by our Council’s Health Dep’t. One of their ... Read More

David Couch
Mary Brook, 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

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

Frank The Sheepdog
Katanning, 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

" 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

Ready To Get A Quote?

Choose a poly septic tank or leach drain system from COERCO and benefit from high-quality products, easy installation and superior customer service.

Talk to our friendly team today for expert advice and a no-obligation quotation.

get a FREE quote