Limescale Protection DeviceFAQ: Find a provider. Buy at a low price.

A limescale prevention device treats water to minimize limescale buildup in pipes, water heaters, and connected systems. The electronic DAXTRO system operates using a multi-frequency signal and is mounted on the outside of the water pipe. It requires neither regeneration salt nor chemical additives. Calcium and magnesium remain in the water. This makes DAXTRO ideal for anyone who wants to combine physical limescale protection with easy retrofitting and minimal ongoing maintenance.

DAXTRO generates a multi-frequency signal and transmits it to the water system via an element mounted on the outside of the pipe. According to the operating principle described, the signal propagates through the water in both directions. The control unit generates the signal continuously, even when the water is standing. The treatment requires neither contact between the device and the drinking water nor any chemical additives. We will tailor the appropriate unit model and positioning to your system.

DAXTRO provides limescale protection while preserving minerals; a water softener reduces water hardness. A conventional ion exchanger replaces calcium and magnesium ions with sodium ions and requires salt and rinse water for regeneration. With DAXTRO, these regeneration steps are eliminated. For you, this means: no need to refill salt, no salt storage, and no regeneration wastewater. If your application requires a specific, lower level of hardness, a water softening system designed for that purpose is the right solution.

Yes. With DAXTRO, calcium, magnesium, and the measured water hardness are always preserved. The limescale protection device treats the water physically without removing these minerals. You can continue to use perfectly safe drinking water for drinking, cooking, and household purposes. A hardness test measures the mineral content; you can assess the buildup of deposits by looking at the surfaces and the amount of cleaning required. This allows you to focus precisely on the purpose for which the device is used.

A limescale protection device is particularly useful for hard water and situations requiring frequent descaling. This applies to private households as well as apartment buildings, commercial properties, and larger hot-water systems. When selecting a device, factors to consider—in addition to local water hardness—include temperature, water consumption, pipe diameter, and system configuration. You can obtain the water hardness rating from your water utility. If you’re looking for limescale protection without the need for salt storage, refilling, or regeneration wastewater, DAXTRO offers a solution designed specifically for this purpose.

Less limescale promotes efficient heat transfer. Limescale acts as an insulator on heating and heat exchanger surfaces. Effectively limiting such deposits can therefore help maintain the system’s efficiency and reduce the energy required for hot water production. The extent of the savings depends on the condition and operation of your system. For a meaningful comparison, energy consumption, hot water volume, and temperatures are considered together.

A DAXTRO limescale protection device treats the water electronically; a water filter, depending on its design, traps certain particles or substances. DAXTRO transmits its signal from outside into the water system and retains calcium and magnesium. A mechanical household water filter performs a different function: for example, it traps particles carried into the water. Both functions can be taken into account when planning your installation. Continue to operate and maintain your existing filter according to its instructions.

The externally mounted DAXTRO unit does not reduce the pipe’s cross-sectional area and therefore does not cause any additional pressure loss in the water line. No filter cartridge or valve is installed inside the pipe for treatment. The water flows through the existing piping. This installation method facilitates integration into existing systems and preserves their hydraulic configuration. The actual pressure at your water outlets continues to depend on the water supply and the rest of the plumbing system.

Yes. DAXTRO continuously generates its multi-frequency signal, even when no water is being drawn. Signal transmission therefore remains active at night and between usage periods. The signal propagates through the water in both directions. Leave the device turned on for this continuous operation, as specified in the instructions. This ensures that the electronic water treatment is integrated into the ongoing operation of your system.

Yes, DAXTRO uses patented multi-frequency technology developed in Switzerland. The focus is on generating the treatment signal and transmitting it to the water system. The technical development combines research and engineering with the goal of protecting water systems over the long term. For the application, this means a proprietary technology platform that can be integrated into existing installations thanks to its external mounting.

Grubatec AG in Füllinsdorf is your supplier of DAXTRO limescale protection devices in Switzerland. The product line includes PURE, CARE, PREMIUM, WAVE, HEALTH, and CLEAN DROP 2. We’re here to help you choose the right model and answer any questions you may have about the installation location. Discuss your installation directly with us at +41 55 617 00 80 or info@grubatec.ch. The comparison of DAXTRO limescale protection devices provides an initial overview.

A good water softener provider combines expert product selection with transparent pricing and accessible advice. Keep these five points in mind:

• The recommendation takes into account pipe diameter, flow rate, and system configuration.
• The offer clearly specifies the model, contents of the package, and sales tax.
• The price of the equipment, installation, and additional services are clearly itemized.
• Technical specifications and test results apply to the specific model and its intended use.
• The warranty terms and the contact person for any future questions are clearly specified.

Here's how to choose a provider that keeps your installation and long-term use in mind.

At Grubatec, you’ll find DAXTRO equipment selection, published model prices, and personalized support—all from a single source. Six models cover applications ranging from compact water systems to extensive building networks. We take your pipe dimensions, intended use, and installation situation into account when making recommendations. The clear product data helps you compare power consumption, the number of channels, and the range of applications. This makes it easier to purchase a solution that’s technically and economically right for you.

Using photos of the installation and the key system specifications, you can select the right scale prevention device. The following information will be helpful for your inquiry to Grubatec:

• Building type and use: apartment, single-family home, multi-family home, or commercial property.
• Pipe material, measured outer diameter of the pipe, and photos of the potential installation site.
• Water hardness, as well as information on water consumption or flow rate, if known.
• Installation of the boiler, hot water system, and circulation system, as well as the existing power supply.

Please also describe your goal, such as protecting your home from limescale or treating a specific system. This will result in a clear recommendation for the right equipment.

At Grubatec, you can purchase the DAXTRO PURE starting at CHF 695.00, excluding VAT—the most affordable unit among the six DAXTRO models offered here. The PURE is designed for compact water systems such as individual apartments, RVs, and small yachts. It operates at 3.5 watts, and the standard version fits pipes with an outer diameter of up to 33.7 mm. If you’re looking to buy a water softener at an affordable price, start by selecting the technically suitable model and then compare the initial cost and operating expenses. Here you’ll find the product details for the DAXTRO PURE.

The prices for equipment listed on Grubatec range from CHF 695.00 to CHF 8,950.00, excluding sales tax in each case.

If needed, a customized quote can include installation, accessories, and service. You can find all models in the current price list.

Day-to-day operation is straightforward: just connect to a power source—no need to refill salt or regenerate the unit. DAXTRO is designed to be maintenance-free and requires neither regeneration salt nor chemical dosing agents. For the PURE and CARE models, the estimated electricity costs—based on an assumed rate of CHF 0.30 per kWh—are less than CHF 10 per year. You can continue to perform routine maintenance on your water heater, drinking water filter, and home plumbing system as usual. You can have any specific service requests included in the quote.

DAXTRO operates with low power consumption: between 3.5 and 24 watts, depending on the model. Based on 8,760 operating hours per year, the following model calculation results:

Calculation: Watts ÷ 1,000 × operating hours × electricity rate. Using your personal electricity rate, you can easily apply this calculation to your household or business. The table is based on the specified power consumption and an assumed rate.

A DAXTRO limescale protection system offers ongoing cost savings because it eliminates the need for regeneration salt and water. It also eliminates the need to purchase, store, and refill the salt. A comparison of the costs of purchase, installation, electricity, and service over the same period will show which solution is more cost-effective for you overall. Keep your goal in mind: DAXTRO preserves the minerals, while a water softener reduces water hardness. This will help you find the most cost-effective solution for your needs.

Yes, the design for external installation allows for self-installation under the right conditions and can save on installation costs. For the DAXTRO unit, the water line remains connected; it does not need to be disconnected. You will need an easily accessible section of pipe, sufficient space, and a suitable power supply. Follow the installation instructions for your model. Grubatec is available to assist you with any questions regarding the installation situation. If additional work is required, it can be included separately in the quote.

The prices listed here are in Swiss francs and do not include VAT. For example, the DAXTRO PURE costs CHF 695.00, excluding VAT. When comparing prices, be sure to consider the total amount, including applicable VAT and any additional services such as installation or accessories. Always compare offers on the same price basis. This will help you clearly identify which water softener is the best value for your installation and budget.

With DAXTRO, there is no need for regeneration salt or the water required for salt regeneration. This also eliminates the associated regeneration wastewater for this treatment step. You do not need to stock salt and save on the procurement, transportation, and packaging of these consumables. Instead, the unit operates with low power consumption. Thus, salt-free limescale protection combines straightforward operation with economical use of water and consumables.

DAXTRO PURE is the compact model designed for individual apartments and smaller water systems. The unit uses a single channel and is designed for pipe outer diameters up to 33.7 mm. When planning the installation, it is crucial to select a suitable section of pipe and determine the routing of the lines within the apartment. Determine which faucets are supplied by the line in question and how the hot water system is configured. For shared building installations, coordinate the installation with the owner or property management.

DAXTRO CARE is a suitable choice for residential buildings, boilers, and heating systems. This model operates at 3.7 watts, features one channel, and uses a ferrite core for pipe outer diameters up to 33.7 mm. The final selection depends on water demand, piping configuration, and the intended application. With proper installation planning, the water treatment system can be tailored to the connected supply network. Compare the technical specifications of DAXTRO CARE with your installation.

For larger buildings and sophisticated systems, DAXTRO offers the PREMIUM, WAVE, HEALTH, and CLEAN DROP 2 models. All four models are designed in their standard versions for pipe outer diameters up to 63 mm:

• PREMIUM: a channel for buildings, commercial applications, and larger pipe diameters.
• WAVE: two channels for larger installations.
• HEALTH: a channel with an enhanced hygiene profile for applications designed accordingly.
• CLEAN DROP 2: Two channels with an enhanced hygiene profile for extensive water distribution networks.

Grubatec tailors its selection to flow rate, piping layout, circulation, and intended use.

Yes, DAXTRO is compatible with numerous common pipe materials. These include, among others, copper, stainless steel, galvanized steel, PVC, PE, PEX, and multilayer composite pipes. The standard versions of PURE and CARE are designed for pipe outer diameters up to 33.7 mm; PREMIUM, WAVE, HEALTH, and CLEAN DROP 2 are designed for diameters up to 63 mm. For larger pipes, we’ll advise you on the appropriate model. To select the right one, measure the actual outer diameter of your pipe.

DAXTRO is mounted on the outside of a suitable section of the water line and can be retrofitted into existing installations. The supply line is often the best option for building service. In more complex systems, hot water production and circulation are included in the planning. Installation is also easier in older buildings because it does not require cutting into the pipe. The condition of existing pipes and water heaters, as well as any necessary cleaning work, are taken into account during the planning phase. A photo helps to coordinate the installation location in advance.

DAXTRO is designed for continuous signal generation with low power consumption. Keep the device turned on as described in the operating instructions. In the event of a power outage, signal generation pauses; however, the externally mounted device itself does not interrupt the water flow. As soon as power is restored, check the operating indicator as described in the instructions. This allows you to easily monitor the device’s status.

DAXTRO requires space for a compact control unit and the transmission element—the ferrite—which is attached to the outside of the pipe. The dimensions vary depending on the model:

• PURE and CARE: Control unit 85 × 54 × 24 mm; mounted ferrite M 105 × 114 × 40 mm.
• PREMIUM, WAVE, HEALTH, and CLEAN DROP 2: Control unit 160 × 105 × 30 mm; mounted ferrite 135 × 140 × 48 mm per ferrite.

The WAVE and CLEAN DROP 2 use two ferrites. Be sure to allow sufficient space for mounting, cable routing, and power supply.

The actual outer diameter of the pipe is crucial for selection. Measure it on an accessible section of pipe using a caliper, from outer edge to outer edge. Alternatively, measure the pipe’s circumference and calculate: Circumference ÷ 3.1416 = outer diameter. Any existing insulation is not included in the pipe diameter. The designation “DN” refers to the nominal diameter and does not automatically correspond to the measured outer dimension. Please provide Grubatec with the measurement in millimeters along with a photo.

In systems with separate water circuits, it may be advisable to have multiple treatment points. The design also takes into account long pipe sections without regular flow and circulation. In an interconnected network, the signal propagates in both directions. Therefore, the actual pipe layout is crucial.

For use in Legionella prevention, Grubatec offers the DAXTRO HEALTH and CLEAN DROP 2 units. Both models are designed to combat Legionella and Pseudomonas bacteria. They combine electronic scale protection with continuous water treatment for systems with stringent hygiene requirements. The choice depends on the piping system, circulation, and area of application. Compare the technical specifications of DAXTRO HEALTH and DAXTRO CLEAN DROP 2 for your installation.

DAXTRO HEALTH and CLEAN DROP 2 continuously transmit a multi-frequency signal to the water system and are designed to limit biofilm and bacterial growth. The treatment continues to operate even between water withdrawals and can be integrated into ongoing building operations.

The TÜV report on DAXTRO Health Professional documents final Legionella levels below 100 CFU/100 ml in three of the four hot-water systems tested. In one of these systems, the installation location had been adjusted beforehand. These results pertain to the model tested and the operating conditions at that location. Further details are provided in the response regarding the test results for DAXTRO HEALTH.

HEALTH and CLEAN DROP 2 offer application profiles for Legionella protection with different numbers of channels. This allows the technical design to be adapted to the configuration of your water system:

• HEALTH: a channel with a transmission element for the intended treatment site.
• CLEAN DROP 2: Two channels with two transmission elements for installation at two treatment points.

In their standard configurations, both units are designed for pipe outer diameters up to 63 mm. Pipe routing, circulation, and hygiene requirements determine the appropriate design.

Yes, DAXTRO HEALTH and CLEAN DROP 2 can be integrated into existing hot water systems for supplemental water treatment. Installation takes place on the outside of the piping; the pipe does not need to be cut open for the units. This simplifies retrofitting in apartment buildings, hotels, and care facilities. During the planning phase, hot water production, circulation, pipe diameter, and suitable installation locations are considered together. This results in a technical addition to Legionella protection that is tailored to the building.

Yes, the electronic treatment system using DAXTRO HEALTH and CLEAN DROP 2 does not require a separate chemical dosing system. The signal is transmitted from an external source to the water system; the devices operate continuously without regeneration salt. To prevent Legionella, the hygiene plan continues to specify the required temperature control, sufficient water replacement, and necessary disinfection measures. Regular microbiological testing is conducted during operation to monitor the development of Legionella levels in your system.

Once properly installed and commissioned, DAXTRO continuously generates its treatment signal. Monitor the development of scale and the cleaning effort required during subsequent operation. To do this, document clean fittings or accessible components and compare them under similar conditions of use. Water quality, consumption, and existing deposits influence the rate of buildup over time. Since the minerals remain in the water, evaporated droplets can continue to leave behind residues. For water heaters and larger systems, maintenance reports help in interpreting these changes.

You can continue to use your household appliances as usual. Adjust the water hardness settings and detergent dosage according to the actual water hardness, as the natural minerals are preserved. A dishwasher with a built-in water softener still requires regeneration salt as specified in its instructions. For coffee makers, follow the care instructions and assess the actual need for descaling. This way, you can effectively coordinate the central water treatment system with the maintenance of your appliances.

DAXTRO is also designed to remove existing lime deposits. The treatment helps reduce these deposits and prevents new ones from forming. The timeline for this process depends on the condition of the system and its operating conditions. Maintenance reports help assess the progress.

DAXTRO is designed to counteract the effects of rust and corrosion in water systems. Continuous treatment helps ensure long-term protection of piping and connected equipment. This is particularly important for boilers, cooling circuits, and process systems, for example. The application takes into account the condition of the installation and the specific equipment design. Proper maintenance complements the technical protection of the system.

Biofilm provides a habitat for microorganisms; DAXTRO applications designed for this purpose help limit the formation of such deposits. The treatment operates continuously and can be integrated into ongoing plant operations. This makes biofilm an important consideration when planning water systems with high hygiene requirements. Equipment selection, cleaning, necessary disinfection, and inspections are all viewed as components of a comprehensive hygiene strategy.

Yes, the intended applications for DAXTRO also include the treatment of systems in which algae occur. Examples include swimming pools, tanks, and related water circulation systems. The appropriate model supports system protection and is tailored to the system’s design. In this process, the existing filtration, purification, and water treatment systems are considered in conjunction with the electronic treatment. In this way, DAXTRO integrates seamlessly into the existing operational concept.

DAXTRO complements the existing water treatment system as an additional measure to protect the system. Filtration, cleaning, necessary disinfection, and inspections will continue. This allows the electronic treatment system to be integrated into regular pool operations while maintaining the proven hygiene measures.

Studies conducted with DAXTRO Health Professional and HEALTH have documented positive results in selected hygiene applications. In the TÜV study of four existing hot-water systems, the final Legionella counts in three of the systems were below 100 CFU/100 ml. In one of these systems, the installation position had been adjusted beforehand; the fourth system required further investigation.

In a laboratory experiment conducted by the University of Camerino using HEALTH, the concentration of cultivable Pseudomonas aeruginosa decreased significantly. After four and 24 hours, no colonies were detected using the culture method employed. The results provide insight into the hygienic applications of the respective models and refer to the test conditions described and the microorganisms studied.

DAXTRO lists CE, FCC, UKCA, and ISO 9001. This information pertains to product compliance in various markets and quality management, respectively. The specific implementation is governed by the relevant compliance and certification documents.

DAXTRO HEALTH can be incorporated as an additional technical component into a professionally planned hygiene concept. This includes a suitable installation location, correctly set hot water temperatures, and the necessary inspections. Grubatec will assist you in selecting the right unit and coordinating with your specialist. The existing hygiene requirements, inspections, and required hot water temperatures remain in effect even after the unit is installed.

DAXTRO simplifies long-term operation with a design that eliminates the need for salt refills and salt regeneration. Select the unit that is appropriate for your system and follow the installation and operating instructions; the specified ambient temperature range for the control units is 5 to 40 °C. Keep an eye on the operating indicator and ensure that the unit is properly secured. Continue to perform routine maintenance on the boiler, filter, and water system. Grubatec is available to assist you with any questions regarding operation.

Grubatec provides a 2-year warranty on your DAXTRO limescale protection device. Grubatec is your direct point of contact for questions about the device and the warranty. Please keep your proof of purchase and the device documentation so that we can quickly identify your model when you contact us. For details on the scope of the warranty and the claims process, please refer to the accompanying warranty terms and conditions.

Please contact Grubatec AG directly at +41 55 617 00 80 or info@grubatec.ch. Please have the model number, proof of purchase, and, if available, the serial number ready. A brief description of the issue, along with photos of the device, the status indicator, and the installation, will help us assess the situation. Grubatec will discuss the next steps with you. This way, you’ll have a dedicated point of contact even after your purchase.

A total cost analysis shows just how cost-effective the right limescale protection solution is over several years. Add up the cost of the unit, installation, and accessories, as well as the electricity and service costs for the desired time period. Compare this total to the cost of your current solution or an alternative solution, using the same VAT rate.

If you have positive annual net savings, you can calculate the payback period as follows: additional investment ÷ annual net savings = years to payback. Expenses avoided for consumables can be factored in directly; savings on descaling, cleaning, and energy should be estimated based on your system’s actual performance.