Benchmark Hydraulics & Civil is a Western Australian owned and operated plumbing, hydraulic and civil services business based in O’Connor, servicing commercial, civil, mining, resources, remote area and new housing clients across Western Australia. The company has more than 40 years of experience within the plumbing industry and provides commercial plumbing, drainage, civil works, mining and remote area hydraulic services, sewer and water mains, stormwater, sanitary plumbing, gas services, backflow prevention and water treatment-related works. With a strong focus on quality service, safe work practices and compliance with industry standards, Benchmark Hydraulics & Civil supports projects of all sizes with experienced site and office personnel, strong project management and practical communication. The business aims to deliver work successfully, on time and on budget, while meeting client documentation, regulatory, budget and schedule requirements.
Oily Water Separators (OWS) Installation in Willagee, WA 6156
Commercial Plumbing Co Pty Ltd is a Bibra Lake-based plumbing business specialising in industrial, commercial and mining projects across Western Australia. The business provides design, installation and maintenance services, with capability across hydraulic systems, civil drainage design and plumbing works required to comply with Australian Standards. With a strong focus on safe and effective project delivery, Commercial Plumbing Co Pty Ltd supports clients with commercial plumbing, civil drainage, hydraulic design and project-based plumbing services. The company operates from Unit 2, 52 Cocos Drive, Bibra Lake WA 6163, and holds Plumbing Licence PL 8947.
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Wilcox & Co Plumbing is a Perth-based hydraulic services contractor with more than 50 years of experience delivering commercial plumbing and hydraulic infrastructure projects throughout Western Australia. Established in 1974, the business specialises in the design, coordination and installation of hydraulic services for commercial, industrial, government and institutional developments, working closely with builders, architects, engineers and project teams to deliver high-quality outcomes. Known for its technical expertise and long-standing industry reputation, Wilcox & Co Plumbing has successfully delivered hydraulic solutions across a wide range of major construction projects, providing reliable, compliant and efficient plumbing infrastructure. With a strong focus on professionalism, quality workmanship and project delivery, Wilcox & Co Plumbing continues to be a trusted partner for complex commercial developments across Western Australia.
Welcome to Superior Plumbing, your trusted partner for premium plumbing solutions in Perth. Providing free upfront fixed quote prices, our skilled team specialises in Residential and Commercial projects, such as blocked drain repairs, strata subdivisions, junction cut-ins, and sewer and water main extensions.
Fairview Plumbing & Civil Pty Ltd is a Perth-based commercial, industrial and civil plumbing specialist delivering professional plumbing solutions across Western Australia. Established in 2011 by Directors Joel Fienberg and Luke Burwood, Fairview has developed a reputation as a trusted plumbing contractor for builders, developers, government, commercial and industrial clients. With more than 30 years of combined industry experience, Fairview specialises in commercial plumbing, civil drainage, Water Corporation infrastructure, fire services, industrial maintenance, gas services and complex plumbing installations. Driven by quality, safety and strong client relationships, Fairview Plumbing & Civil delivers reliable outcomes from project commencement through to completion.
Find a Master Plumber for commercial and industrial plumbing
Installing an oily water separator is an important project for a mechanical workshop, wash bay or industrial site managing wastewater from vehicle, equipment or plant cleaning. The right approach starts with the wastewater produced on site, the way the wash area is used and where treated water is intended to go. These details help shape a system that is appropriate for the site rather than simply selecting a unit in isolation.
Oil water separator installation may form part of a new wash bay, a workshop upgrade, replacement planning or a broader trade waste arrangement. A Master Plumber can consider the separator alongside drainage, access, pumps, controls and the practical needs of the operation.
What an oily water separator does
An oily water separator is pre-treatment equipment designed to separate oil, grease, hydrocarbons, silt and suspended solids from wastewater before discharge to sewer, trade waste infrastructure or an approved treatment pathway. The system works by slowing wastewater through a treatment chamber: solids and grit can settle, oil can rise, and cleaner water can pass towards the outlet.
Some systems use coalescing plates or tubes. These assist smaller oil droplets to combine into larger droplets so they can separate more effectively. The equipment is only one part of the outcome; flow, waste type, cleaning chemicals, drainage layout and future access all matter when an installation is being considered.
Where oil water separator installation may be needed
Oily water separators are commonly used where wastewater can be affected by oils or hydrocarbons. Relevant settings may include mechanical workshops, wash bays, car dealerships, transport depots, mine service yards, fuel handling areas, marinas, plant hire yards, industrial sites and commercial vehicle washdown areas.
A wash bay oil water separator installation needs to reflect how the area is used. For example, the likely flow, the equipment being cleaned, the cleaning products in use, whether the bay is roofed or unroofed, and the existing pits and drains can all be relevant to the installation conversation.
Separator and treatment arrangements to discuss
Different sites may use different equipment configurations. An oily water separator may be an above-ground stainless or poly packaged unit, a below-ground separator, a vertical gravity separator, a coalescing plate separator, a hydrocyclone system or part of a more complex wash bay treatment system.
Depending on the proposed arrangement, the work may also involve inlet and outlet pipework, pumps, baffles, coalescing plates or tubes, filter bags, sludge compartments, oil collection drums, float switches, control panels, alarms, sampling points, bypass arrangements and connection to trade waste drainage. A solids arrestor, silt trap or sludge pit may also need to be considered as part of the broader layout.
| Site consideration | Why it matters |
|---|---|
| Wastewater and cleaning products | Waste type and chemical use are relevant to separator selection and the intended treatment pathway. |
| Expected flow and wash bay use | Flow rate and the way the wash area operates are critical considerations for a system to work properly. |
| Drainage and proposed location | Existing drains, pipework routes, inspection points and the separator location influence the installation layout. |
| Access after installation | Access for future servicing and tanker access can be important practical considerations. |
Planning a mechanical workshop oil water separator installation
A mechanical workshop oil water separator installation is not only an equipment decision. It can require consideration of wash bay drainage, power for pumps or controls, isolation and alarm arrangements, inspection and sampling points, and access for installation equipment. Where appropriate, installation planning may involve commissioning, testing and handover.
Trade waste approval, site management requirements and coordination with Water Corporation, local government or environmental consultants may also be relevant. A plumbing business can discuss the information needed for the project and how site conditions may affect the work.
Prepare useful information before making contact
Good site information helps a plumbing business understand the project and the operating constraints before design decisions are made. Gather what is readily available rather than trying to diagnose the system yourself.
- Provide the site address, business type and a contact person authorised to approve design decisions.
- Describe wash bay use, the vehicles or equipment involved, expected flow and cleaning chemicals used.
- Share the status of any trade waste permit and any available site drainage plan.
- Provide photos of existing pits, drains and equipment labels, plus the proposed separator location.
- Flag available power, installation access, tanker access and whether the wash bay is roofed or unroofed.
- Identify site access arrangements, inductions, shutdown restrictions, safety permits and environmental controls that may affect the work.
Choosing a plumbing business for the project
Commercial and industrial sites can have operational, access and continuity considerations beyond the separator itself. It is useful to discuss plant location, drawings or manuals, previous service records, shutdown windows and the person authorised to approve work. Where applicable, site requirements may include inductions, permits, isolation requirements, confined-space risks or hot works controls.
Find a Master Plumber connects customers with Master Plumbers and plumbing businesses associated with the Master Plumbers and Gasfitters Association of Western Australia. The directory is backed by the Association, which has represented Western Australia’s plumbing and gasfitting industry since 1901. Choosing a Master Plumber helps customers make a more informed choice of plumbing business for their property or project.
Related workshop and wash bay services
An oily water separator can sit within a wider workshop or wash bay system. Depending on the site and project, it may be useful to consider oily water separator repairs and maintenance, recycle system installation or repairs, tankering and cleaning, pressure washer work, mag flow meter services, or sampling and testing. Discuss the specific site need with the plumbing business you choose; not every plumbing business provides every service.
Frequently asked questions
What is an oily water separator?
An oily water separator is pre-treatment equipment intended to separate oil, grease, hydrocarbons, silt and suspended solids from wastewater before it is discharged to sewer, trade waste infrastructure or an approved treatment pathway.
What affects oil water separator installation?
Key considerations include expected flow rate, waste type, cleaning chemicals, wash bay design, maintenance access and trade waste approval. The drainage layout, proposed location, available power and site access can also influence the installation approach.
Can an oily water separator be installed above or below ground?
Yes. Possible arrangements include above-ground packaged units, below-ground separators, vertical gravity separators, coalescing plate separators and hydrocyclone systems. The appropriate arrangement depends on the site and wastewater considerations.
What information should I provide for a wash bay separator project?
Useful details include the site address, business type, wash bay use, vehicle or equipment type, expected flow, cleaning chemicals, permit status, drainage plan, photos of pits and drains, proposed location, power availability and access information.
Why are coalescing plates or tubes used?
Coalescing plates or tubes help smaller oil droplets combine into larger droplets, allowing them to separate more effectively within the treatment chamber.
Can installation involve more than the separator unit?
It may. The work can involve drainage connections, pipework, pumps, control panels, alarms, sampling points, inspection points, isolation arrangements and integration with solids or sludge management components.
Use Find a Master Plumber to choose a plumbing business for an oily water separator project, workshop or wash bay system. Provide clear site and wastewater information so the conversation can begin with the practical needs of your operation.