Sustainable Buildings

Sustainable protection of water systems

Ecological and economical water treatment for use in all types of buildings

AQUA4D® technology solves some of the most persistent problems in water systems, including limescale, corrosion and biofilm – all without chemicals and without costly maintenance. With seamless integration into existing systems, the effect is not only curative but also preventive: AQUA4D® is a powerful and lasting solution.


Stops and eliminates rust deposits and prevents future corrosion.

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Stops and removes existing deposits and offers long-term protection.

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Eliminates and prevents biofilm formation.

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By experts, for experts

Technology as a Service (TaaS) for Sustainable Buildings

Our technical consultants work daily with the plumbing designers and the installation companies.
We make sure that every detail is thought of in your projects with AQUA4D.

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Strong Swiss collaborations

Approved by public organizations and local municipalities

Institutions such as the Swiss Climate Foundation and the European Commission have recognized our technology as exemplary, as has the Canton of Valais, which has recommended the use of the system in all municipal buildings. Use of AQUA4D® also supports environmental certification processes (LEEDs, Green Building Council, etc.).

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Innovative cleantech solutions

Simultaneous resolution and prevention of various problems

The use of AQUA4D® means less need for softeners, less replacement of old water pipes, and no more harmful chemicals entering water systems.


  • Stops limescale and rust formation in pipes
  • Removes existing deposits
  • Calcite is converted into aragonite and washed out

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  • Permanently stops corrosion
  • Removes rust deposits
  • Protects against corrosion and forms a passivation layer

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  • Stops bacterial development
  • Gradually washes away existing biofilm
  • Protects against new deposits and new biofilm buildup

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Monitoring tube

A. New pipe section made of the same material: serves to monitor the preventive effect of AQUA4D® (prevention of new deposits).
B. Old pipe section from the existing line with incrustations: serves to verify the gentle breakdown of deposits by AQUA4D®.

Simple efficiency monitoring

Clever “Monitoring Tube” verifies efficacy

AQUA4D recommends the installation of one or more Monitoring Tubes to be able to check the effectiveness of the water treatment at any time. This consists of a removable piece of piping installed in the existing system. This means a quick check can be made at any time to verify the AQUA4D® system’s effects, without needing to flush the pipes or take anything apart.

Technological comparison

An array of economic and ecological advantages

AQUA4D® offers an all-in-one solution for stubborn problems in water systems. A single system saves time, uses no chemicals and saves the costly replacement of old systems.

Water softeners
Mechanical cleaning
Water quality
Curative effect
Preventive effect
Without chemical products
Water mineral balance & taste
Less maintenance & consumables
Less space requirement
Long-term ecological impact (10+ years)
Reliability with variable water sources
Positive effect on health

“The AQUA4D® system has saved us from having to replace all the pipes in the building.”

Antoine Perri,
CSV Confort & Cie SA

“There’s a clear improvement in all the buildings, how the limescale has been broken down and how the remaining lime has already softened.”

Pascal Oggier,
Oggier Haustechnik GmbH

“The result was simply amazing – after running smoothly for 18 months, everything was even cleaner and shinier than when it was installed!”

Daniel Neuenschwander,
Pärli AG

Groundbreaking technology, seamless integration

Effective over multiple kilometers

AQUA4D® technology works with any type of water – chemical composition and degree of hardness make no difference. Equally, the results are achieved with all types of piping, regardless of the material (e.g. steel, copper or plastic). Crucially, the effectiveness of AQUA4D® can be proven over several kilometers of piping.

AQUA4D Sustainable Buildings: Product Range

Our products

Our product range for buildings consists of the following modules:

F Pro Control Unit (CU)
The “brain” of the system, generating the specific resonance signals and constantly monitoring the proper operation of the system.

TU 60G-B Treatment Unit
(Ideal for smaller buildings and houses, flow rate up to 60 l/min, 3.6 m3/h per unit)

TU 360G-B Treatment Unit
(Ideal for public buildings, hotels, industrial buildings, etc., flow rate up to 360 l/min, 21.6 m3/h per unit)

The Treatment Unit (TU) distributes the resonance fields generated by the Control Unit (CU). For very high flow rates, the Treatment Units are mounted in parallel to cover the entire flow rate to be treated.

The systems can treat any flow rate, and simultaneously treat cold and hot water pipes including boilers, by means of a sophisticated modular concept.

See where and how AQUA4D would fit into your building.

Contact us to find out more.

“Thanks to the AQUA4D® Monitoring Tubes downstream we can not only demonstrate the problem, but also the solution: efficient and sustainable.”Walter K. Thut, Co-Inventor, AQUA4D

Sustainable buildings

AQUA4D® in Industrial Buildings: an astounding success

The problem was extraordinarily troublesome: Three to four times a year, a crew from Pärli AG had to go out to clean the FANUC company’s plate heat exchangers.

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Sustainable buildings

Physical water treatments: differences, operation and efficiency monitoring

At Wikipedia one finds under the term “processes of water treatment” under physical processes actually chemical processes. So it says there e.g. aeration, atomization, sedimentation, flotation, adsorption. The water is enriched with gases, which directly changes its chemical composition.

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Sustainable buildings

Water Softeners in Residential Buildings: A Critical Appraisal

The softer the water, the more aggressive it becomes, leading to corrosion of parts that come into contact with the chemically altered water. This is also known to professionals and therefore should not be installed in buildings where galvanized iron pipes are present.

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