Oil-water separators rarely fail overnight. Performance erodes gradually as solids accumulate, internals foul, hydraulics drift, and components wear. By the time a sheen shows up or an inspection goes sideways, the separator has usually been underperforming for months.
This service exists for operators who don’t want guesswork, theories, or band-aids.
They want their separator clean, predictable, and defensible.
Mercer provides the engineering oversight, field direction, and performance accountability required to restore and maintain real-world separator performance.
A separator that looks “operational” can still be failing where it counts—inside the tank.
Most performance issues trace back to:
Pump-outs alone don’t fix these problems.
Cleaning, repair, and updating do—when they’re driven by engineering, not assumptions.
We focus on the internals and hydraulics that actually determine oil removal, not just liquid removal
Conditions are documented so operators know what was found and what changed
Decisions are tied back to flow, loading, and separation physics
Mercer brings specialized water-management, recovery, and service capability to the site
Restore performance without unnecessary replacement or excavation
This service is typically needed when:
If performance feels unpredictable, it probably is.
