Merus® Ring
Active water oscillation ring
Water treatment without chemicals against limescale, corrosion and biofilm in pipes and systems. No power supply needed.
Merus® has been working at the root of the problem for more than ten years. All conventional technologies on the market – whether chemical or physical work only at point of installation.
The Merus® unique oscillation technology can achieve the desired results by either reducing or eliminating the issue.
The rings do not require servicing or maintenance.

The marine risk categories
Are your operations at risk of
Limescale
In a dissolved form, limescale and corrosion as well as other salts can be found in almost any water.
This is often found in the seawater evaporators, fresh water generators and heat exchangers on board. For every 6mm of limescale build-up, 40% more energy is used.
Corrosion
Rust or Iron oxide is often found in steel or iron pipework, or system with iron components.
This leads to poor water quality, high maintenance costs, or premature failure of equipment.
Legionella
Water suppliers provide water, free of microbiological contamination, however press reports indicate that Legionella is being identified and organisations are at risk of contamination.
Algae & Marine growth
Premature failure of critical equipment like fresh water generators, cooling systems, RO’s and firefighting systems is generally caused by marine growth, algae and bacteria in seawater.
The Merus® solution
Theory meets technology since 1996
Water treatment without chemicals against limescale, corrosion and biofilm in pipes and systems. No power supply needed.
Merus® has been working at the root of the problem for more than ten years. All conventional technologies on the market – whether chemical or physical work only at point of installation.
The Merus® unique oscillation technology can achieve the desired results by either reducing or eliminating the issue. The rings do not require servicing or maintenance. Trial installations of the Merus® ring can be carried out easily, quickly, without any alterations to the piping and without any operational or financial risk.
The demands of the marine industry coupled with our indepth knowledge of your needs means we can reduce concerns
on scale, rust and marine growth waterborne bacteria without the need of chemicals.
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Hesper Engineering accreditations
Assuring quality and excellence
View our complete Tcertified Due Diligence report here.
We have robust in house anti-bribery and anti-corruption policies and insist on transparency in all our dealings. We are TRACE certified.
- Across the board transparency
- Constant lines of communication
- Complete support & documentation