Mercer's Definition of "High Performance"
Mercer believes high performance in oil–water–solids separation means sustained removal efficiencies over long periods of time, without the constant shutdown of equipment caused by clogging and fouling. With longer run times between cleanings, and internals that never require replacement, Mercer systems deliver unparalleled OPEX reductions, saving customers millions of dollars annually.
Root Cause
Conventional oil water separators tick boxes, not performance goals. Corrugated plastic media clogs, crumbles, and caves. And when oil, solids, and time mix, you get one guaranteed outcome - Sludge.
Removing oil from water is the objective, but solids are the real problem. Even at low concentrations, solids accumulate, bind with oil, and form sludge that plugs and fouls conventional coalescers.
Mercer eliminates this failure mode by addressing solids before they become a performance liability, preventing chronic plugging and maintaining stable separation performance over long operating cycles
Explore (and expose) Coalescer ShortfallsWe watched others cut corners with cheap materials, prefab shortcuts, and designs that ignore real process data, and we refused to follow them there. Mercer is never the cheapest, but we are always the least expensive, because uptime, longevity, and life-cycle cost matter more than clipped CAPEX coupons. We engineer systems correctly from the start so you never have to replace internals, fund consumables, or feed a business model built on breakdowns. We back every performance claim with transparent, long-hand calculations grounded in first-principles engineering.
Explore The Mercer Advantage in Greater Detail
3–5× longer maintenance intervals
25+ years service life
API 421 driven compliance -
NO EXCEPTIONS
Absolutely Zero Replacement Parts or Consumables
Retrofit-ready for underperforming units
Solutions By Configuration
Mercer doesn’t sell equipment by the piece; we deliver complete systems that restore performance, extend service life, and simplify maintenance. Explore our core product families - each engineered for long-term ROI and peace of mind.
INDUSTRIES WE SERVE
Mercer systems run in environments where failure is not an option. We partner with operators and engineers in industries where performance and proof matter most.
Upstream
Midstream
Downstream
Oil Sands
Saltwater Disposal Wells
Hydroelectric
Combined Cycle
Coal
Nuclear
Renewables
Airports
Rail Yards
Vehicle Maintenance
Parking Facilities
Runoff Management
Remediation Sites
Large Municipal Systems
Chemical Plants
Refineries
Storage Terminals
Cooling Water Systems
Vehicle Wash Bays
Airbases
Bilge Treatment
Test Facilities
MEASURABLE ROI
Cheap equipment is the most expensive mistake you’ll ever make.
Mercer’s engineered systems deliver measurable ROI - not marketing math.
A 400 GPM unit cut maintenance costs from $120K to $7K per year and saved over $725K across 25 years.
Most installations reach ROI parity within
2–3 years and keep paying dividends through uptime and compliance.
2.5 Years
The point where the savings in maintenance overtakes the initial difference.
$725k
Total accumulated savings over the typical lifespan of the equipment.
Maintenance Events
A 400 GPM unit cut maintenance costs from $120K to $7K per year, saving over $725K.
Equipment Longevity
Most installations reach ROI parity within 2.5 years and keep paying dividends through uptime.
Total OpEx Savings
Mercer’s engineered systems deliver measurable ROI — not marketing math. Built to last, designed to save.
BUILT FOR EVERY STAKEHOLDER
Whether you design, maintain, or justify the system, Mercer equips you to make the case. Our resources speak your language - technical, operational, and financial.
Microns only matter when they are backed by math, hydraulics, and an oil water separator design that can actually deliver them under real operating conditions.
Lower operating cost only exists when a system avoids blinding, excessive cleanouts, consumables, and unplanned downtime over its full service life.
Reliability comes from stable flow control, solids tolerance, and equipment that can be inspected, cleaned, and put back online without drama.
PROVEN RESULTS
Maintenance cut 67 %
When New York City’s Con Edison needed to modernize aging separation systems, they chose Mercer. Result: maintenance cut by 67 % in under two years and full API 421 compliance restored. Different industries, same outcome — no surprises, no shutdowns, no compromises.
Maintenance cut 67 %
When New York City’s Con Edison needed to modernize aging separation systems, they chose Mercer. Result: maintenance cut by 67 % in under two years and full API 421 compliance restored. Different industries, same outcome — no surprises, no shutdowns, no compromises.
Maintenance cut 67 %
When New York City’s Con Edison needed to modernize aging separation systems, they chose Mercer. Result: maintenance cut by 67 % in under two years and full API 421 compliance restored. Different industries, same outcome — no surprises, no shutdowns, no compromises.
KNOWLEDGE BASE
RETROFIT REALITY
Mercer retrofits deliver instant performance gains without replacing tankage. Drop-in Multi-Pack™ internals and flow distribution baffles restore efficiency and extend service life for a fraction of replacement cost. If your system performs for a flash and then falls flat, this is your fastest fix.
ENGINEERED INTEGRITY
For 40 years, Mercer has been trusted by industrial operators who value one thing above all else - truth in performance. We don’t take every project because we won’t bend the math to win a bid. When you work with Mercer, you get an engineered solution that earns its place and keeps it for decades.
Who We AreWe care more, and our customers choose us because they do, too. They care about uptime, reliability, and the long-term cost of ownership. They care about the real math behind removal calculations, and they want it from a process design company - not a seller of tanks. We care more, and we own the outcome of every sale.
TALK TO AN ENGINEER
Whether you’re designing new or fighting constant cleanouts, Mercer helps you stop reacting and start performing. Design your custom unit, or request a free, on-site audit to see how better engineering pays for itself.
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