Why Retrofitting
Your separator might not be the problem.
Your coalescer is.
Most industrial separators structurally outlive their internals by decades. The tank is still sound. The concrete is still good. The piping still works. But the coalescer packs, baffles, and distribution systems have long since failed—either through design, fouling, poor maintenance access, or media that was never meant for real-world solids loading.
You don’t need a new separator.
You need a new heart for the separator you already own.
Mercer specializes in transforming “good enough” boxes into high-performance systems by replacing only the failed elements with precisely engineered, removable Multi-Pack™ internals that restore performance, reduce maintenance, and extend system life another 20–30 years.
Most OEMs built systems that look like separators on paper but:
Operators end up fighting a tank that never had a chance.A Mercer upgrade fixes that—permanently.
We pull out the old, clogged, uncleanable block media and replace it with:
If you’ve ever tried to pressure wash into the center of a plastic block, you already know why this matters.
We correct hydraulic chaos by adding engineered inlet baffling that:
Poor inlet design is the #1 performance killer in older separators.
After getting the oil up we get it out:
Mercer designs for solids reality, not solids denial.
We support:
If the system requires confined space entry or makes maintenance impossible, we solve that with:
Your operators should never “dread the tank” again.
And yes—many customers upgrade during bypass while their system is offline for cleaning or repair.
What starts as “just swap the media” usually transforms into:
“How fast can I get a full Mercer package installed?”
You don’t have to guess.
We can pilot a Mercer system in your wastewater to show exactly what improvement to expect before committing to a full upgrade.If the pilot doesn’t work, you owe nothing.
