Grubatec – A specialist in flow measurement, metering devices, and water treatment for over 30 years.
Daxtro – Swiss technology for clean water.
Less limescale, rust, and biofilm. Better hygiene and water quality—all without salt or chemicals.
Swiss Engineering · Explained Simply
How Daxtro Works
Daxtro works on the existing water line from the outside. The system transmits a multi-frequency signal into the piping system, thereby influencing processes related to limescale, rust, and biofilm.
Signal into the water line
Daxtro is mounted on the outside of the water pipe and transmits a special multi-frequency signal throughout the entire piping system.
Less Limescale & Rust
The signal affects the deposition processes in the water. This can reduce limescale buildup and minimize corrosion.
Less biofilm
Less biofilm forms on the inner surfaces of the pipes. This deprives bacteria of an important habitat and nutrient source.
Less favorable conditions for Legionella
Since Legionella bacteria are particularly adept at multiplying in biofilms, reducing biofilm helps to create less favorable conditions for their growth in the plumbing system.
Effect
The Effects of Daxtro in the Video
Two demonstration videos show the effect directly on the water system. The videos can be played individually, paused, and viewed in full-screen mode.
Technology in 20 Seconds
Electrical pulses. Two ferrite cores. Effect throughout the entire piping system.
The basic principle: A control unit generates specific signals, and two ferrite cores couple them from the outside into the existing water line—without opening the pipe.
Three technical components— explained simply.
Specially tuned electrical signals form the basis of the technology.
They are connected directly to the main line—without any cutting or modifications.
They influence crystal formation and—depending on the product line—are also designed for use in applications involving rust, biofilm, and hygiene.
From installation on the pipe to the signal effect within the system.



Choose a product in less than a minute
Which Daxtro device is right for your building?
Select the building size, desired effect, and pipe diameter. You'll immediately receive an initial, easy-to-understand product recommendation.
- PURE and CARE for buildings up to 300 m²
- PREMIUM for larger buildings up to 800 m²
- HEALTH and CLEAN DROP 2 for advanced applications
How It Works: An Easy-to-Understand Explanation
Four challenges. One unique technology.
Daxtro was not developed solely for limescale. Depending on the product line, the technology targets limescale, rust deposits, biofilm, and hygienic applications to combat Legionella.




Limescale deposits
Electronic pulses influence the formation and adhesion of calcium crystals. Hardness minerals remain in the water; Daxtro is not a traditional water softener.
See how it worksRust and Pipes
CARE and the Professional Line are designed for applications where, in addition to limescale, rust or corrosion-related deposits must also be taken into account.
Montage and EffectBiofilm
Biofilm can form as a protective layer in water-carrying systems. Selected Daxtro product lines are designed to physically influence such deposit-forming conditions.
View Drinking Water ApplicationLegionella
Specialized product lines are available for applications with stringent hygiene requirements. Selection, sizing, and verification are tailored to the specific installation.
Exams and CertificatesThe specific effect and suitability depend on the model and application. For hygienic applications, the installation, water system, and existing documentation must be reviewed by a qualified professional.
Product and System Comparison
A Direct Comparison of Limescale Protection Systems
A clear overview of Daxtro’s key features and six common technologies. The Daxtro column is highlighted for quick reference.
| Advantages | DAXTROPulse Technology | MagneticMagnetic system | ElectromagneticElectronic field | Single- r double-coilTube winding | ElectrolyticElectrolysis | PolyphosphatesDosage | Water SoftenerIon Exchange |
|---|---|---|---|---|---|---|---|
| Effective in stagnant water | - | - | - | - | - | - | |
| Effective under running water | |||||||
| Continuous treatment – 24 hours a day | - | - | - | - | - | - | |
| No changes to the installation | - | - | - | - | |||
| No maintenance required | - | - | - | - | |||
| No corrosion | - | - | - | - | - | ||
| No chemical products | - | - | |||||
| An environmentally friendly solution | - | - | |||||
| Suitable for drinking water applications | - | - | |||||
| Works at any water temperature | - | - | - | - | |||
| Effective throughout the entire piping system | - | - | - | - | - | - | |
| Germ-reducing effect | - | - |
The table is based on the criteria in the comparison matrix provided. Specific characteristics may vary depending on the product, model, water quality, and installation conditions.
From Technology to Actual Installation
Don't just explain. Show evidence and practical applications.
Product data, installation examples, and technical documents are presented separately so that you can understand the information immediately.
This is what Daxtro looks like in practice.
Discover real-world installation scenarios, different product lines, and typical applications in homes, buildings, and technical facilities.
Open the Installation Gallery
Customer Reviews
What Customers Value Most
Easy installation, significantly fewer stubborn limescale deposits, and a sustainable alternative that uses no salt or ongoing chemical additives.
I bought this limescale protection device more than two months ago and was particularly impressed by how easy it was to install. There has actually been a noticeable change in the quality of our water—especially in the boiler of our wood-burning stove. Before, I had to completely change the water every morning because there was so much whitish material in it that it almost looked like milk. Now the water can stay in the boiler for several days and is still about 90% clear. In daily use, I don’t yet notice the improvement equally clearly in every situation. However, the initial results make me very optimistic. In six to eight months, I’ll be able to provide an even more detailed assessment. Thank you very much for this opportunity.
After using the Daxtro system for a month, I’m very satisfied. The benefits I’ve noticed: I now only need about half as much detergent in the washing machine and dishwasher, the faucets shine brighter, and they’re much easier to clean. At first, I was skeptical, because it’s hard to trust an effect you can’t see right away. Today, I’d like to thank Mr. Werner for giving me the opportunity to test this innovative limescale protection system. Anyone who’s also skeptical will notice after just a few days that significantly less limescale residue remains in the pot after boiling water—for example, for pasta. I’ll update my review in a year.
After years of battling stubborn limescale buildup, I had almost given up hope of ever really getting the problem under control. Then I discovered Daxtro Italia online. At first, I was skeptical, because the promised results seemed almost too good to be true: it was supposed to prevent limescale while preserving the water’s natural properties. Nevertheless, I decided to give it a try, partly because Mr. Werner explained the device very professionally and in great detail. The promise was kept: The results were visible after just ten days. The filters on the faucets stayed clean, and the stubborn limescale that used to form on the shower doors—which could previously only be removed with chemicals—no longer appeared. I highly recommend Daxtro, especially for single-family homes and detached houses. After installing it on the cold-water line, the effect was immediately noticeable, and the pipes were gradually cleaned as well. It’s definitely worth a try.
I am a residential customer and live in a detached, two-story house. The device met my expectations right from the start. Today, one month after the truly very simple installation, I am extremely satisfied. Day after day, I see fewer limescale deposits on glasses, bottles, sinks, faucets, pots, the espresso machine, and in household appliances—with both hot and cold water. The decalcification routines I used to follow—the chemical products, the time they took, and in some cases even calls to professional technicians—are now a thing of the past for me. What’s especially valuable is the peace of mind that comes from no longer having to add any additional chemical products to my tap water. The phone and email support from Daxtro was also excellent.
In July 2024, I installed three Daxtro limescale prevention devices in three different residential buildings. All three devices continue to function reliably to this day and prevent the buildup of stubborn limescale.
Immediately after installation, the device proved effective against limescale. After just a few days, the water tasted neutral again, the dishwasher worked better, and the laundry felt softer. I'm so satisfied that I bought another one for my father's house.
The device is easy to install and has proven to be very helpful in combating the annoying limescale buildup that had accumulated over time in the filters of faucets, plumbing fixtures, and sinks. That’s why I give the product a clearly positive rating.
Showing 4 of 7 reviews
Frequently Asked Questions Before Making a Choice
What prospective buyers want to know first.
How does a limescale prevention device work without salt or chemicals?
How long does a limescale prevention device last?
Is a limescale protection device maintenance-free?
What are the service and maintenance costs?
What are the dimensions of the limescale protection devices?
What are the advantages of a salt-free water softener?
Experience technology that goes far beyond limescale protection.
Limescale, rust, biofilm, or Legionella: We’ll personally assess your application and, if it’s suitable, provide you with a free test unit.



