Why Retrofitting
Most facilities don’t have the luxury of starting from scratch.
They have concrete in the ground, steel tanks already piped in, and systems that have been “good enough” for years — until suddenly they aren’t.
Sludge is building faster.
Effluent quality is unstable.
Media is clogging.
Operators are fighting constant clean-outs.
Compliance is now a weekly worry instead of a quarterly formality.
The truth?
You probably don’t need a new separator.
You need the right internals, the right hydraulics, and a design that can actually handle the wastewater you’re treating today — not what was assumed twenty years ago.
That’s where Mercer’s retrofitting solutions come in.
We don’t treat retrofits as “patch jobs.”
We treat them as full system rehabilitations that deliver:
If a tank is still sound, Mercer can transform it.There are two major retrofit paths — each addressing a fundamentally different problem.
Most underperforming separators have one thing in common:
The tank is structurally fine, but the coalescer, baffling, or outlet configuration has failed or was never engineered correctly in the first place.
Mercer upgrades replace:
With Mercer’s removable Multi-Pack™ media and engineered hydraulic controls, a “problem separator” becomes a high-performance system with:
API separators were never designed for today’s wastewater realities:
They were built for surface area, not enhanced gravity separation.Mercer’s API Retrofit packages introduce:
The result:
A passive API basin becomes a true engineered separator — often performing at levels competitive with new factory-built systems.
Most customers don’t need:
They need:
You get nearly all the benefits of a new separator without the new separator price.
If the tank can physically hold water, Mercer can usually transform it.
