Water softening systems in the house reduce calcium deposits and protect against the consequences of hard water. The AQON PURE lime protection systems are particularly innovative and leave the valuable minerals calcium and magnesium in drinking water. See for yourself and benefit from our 1-year money-back guarantee.
Proven technology: The effectiveness of our anti-calcium technology in reducing calcium deposits was tested in an 18-month study.
Our descaling systems are installed on the house water connection to your water meter. As a rule, only a free pipe section of approx. 40 cm - 60 cm in length is required.
Compared to a classic water softening system, AQON PURE lime protection systems are completely maintenance-free. There are no costs for consumables, electricity or waste water.
The best thing about our 1 year money back guarantee?
97% of our customers never use them. If you are still not satisfied, you have 365 days to return your AQON Pure system without giving reasons.
To the warranty conditions >>
The advantages of AQON PURE lime protection systems? They are not conventional descaling systems or water softening systems with salt. On the one hand, this makes it particularly easy to determine the size of our lime protection systems and, on the other hand, makes subsequent installation easy. Request the right offer for your house in just 2 minutes using our enquiry form or order directly from our online shop - with installation at a fixed price if you wish.
Smart. Even when it comes to the price. The home s is our answer for the smallest space — and short pipe runs.
Full power. Fully ahead. The home is our innovation for a wide range of water hardnesses and higher flow rates.
Powerful For many. The home + is for everyone who wants more: lime protection for apartment buildings.
Installation (optional) from 285€ (incl. 19% VAT)
Learn moreSystems available for larger apartment buildings. Please use our inquiry tool.
Learn moreWastewater connection, power connection and a separate area for installation: All of this would be necessary to install a conventional descaling system or water softening system (ion exchanger) at the domestic water connection. But you're in luck: Installing AQON PURE lime protection systems is much easier: space-saving & without accessories — even retroactively. On request, with our installation service at a fixed price.
Discover the benefits in general.
Lime is particularly visible when you heat water. This is why calcium deposits in kettles, for example, become visible after only a short time of use. High hot water temperatures cause lime to “precipitate” more quickly and deposit on surfaces. In particular, this concerns hot water generation systems (as part of the heating system). Since large amounts of water flow through and are heated here, hard water quickly forms calcium deposits, e.g. on heating elements and in boilers. These, in turn, can only be removed by specialist companies using certain descaling and cleaning agents. Such boiler decalcifications are in turn associated with costs. At the same time, energy consumption increases per millimeter of lime layer on a heat transfer surface, as calcium deposits act like insulation. As a result, heating times are extended and the costs of providing warm water are rising.
A water softening system or descaling system reduces calcium deposits in hot water generation systems. This not only protects against excessive calcification, but also ensures energy-efficient water heating.
In the bathroom, the consequences of hard water are not only visible, but also felt. Because when tap water contains a lot of lime, calcium deposits form much more quickly. Fittings such as shower heads or faucets calcify at the outlet nozzles or aerators. Chalk also sticks to glass shower walls and tiles and forms stubborn calcium deposits, particularly in the joints. In addition, hard water often feels scratchy on the skin.
As a result, fittings must be descaled regularly and surfaces must be cleaned of lime using special cleaning agents. This not only costs time, but also pollutes the environment with descaling agents. Water softening systems reduce calcium deposits and facilitate cleaning processes.
Good to know: Water softening systems or descaling systems with salt do not provide lime-free water. Here, residual water hardness is always left in tap water. Lime protection systems leave the amount of lime in the water unchanged, but reduce the accumulation behavior of lime through the process of seed crystal formation. Both processes reduce calcium deposits. However, you can't expect to never have to clean again. This is essential for hygienic reasons alone, as water contains many other substances in addition to lime.
Almost everyone knows it from advertising: The washing machine is faulty due to calcium deposits and must be replaced. This is certainly an extreme case. But household appliances in which water is heated in particular suffer from calcium deposits. Especially if they are operated with calcareous water for many years. At the same time, detergents containing lime in water form so-called lime soaps. These lime soaps no longer have the same cleaning power. This increases detergent consumption: bad for the environment and bad for your laundry.
The advantages of water softening systems in the house:
While homeowners can still descale surfaces and household appliances themselves, this is hardly possible with pipes in the house. Hard, calcareous water leads to calcium deposits in water pipes in the long term, particularly in the hot water sector. In the worst case, the pipeline cross section can be reduced to such an extent that the water flow drops massively and only a small amount of water flows out of taps. In such cases, specialist companies must then decalcify the pipes at great expense. Under certain circumstances, it may even be necessary to replace the pipeline system if calcification is very advanced. This entails corresponding costs.
Softening systems and descaling systems protect the pipeline system from excessive calcification. This saves homeowners high costs of cleaning their drinking water pipes in the long term. This is probably one of the biggest economic advantages when deciding to purchase a water softening system.
In addition to the bathroom, the kitchen is one of the most common uses of water in a house. The right drinking water quality is therefore often crucial. Many household appliances, such as coffee machines or dishwashers, do more than just build up lime. Lime also influences, for example, the taste of coffee or the washing results of a dishwasher. Calcium deposits in household appliances must be removed regularly, otherwise they can be damaged in the long term.
Softening systems reduce calcium deposits in household appliances and on surfaces such as kitchen sinks. This makes cleaning processes easier and requires less decalcification.
Good to know: If water is heated particularly strongly, in particular up to 100° C. as in the case of a kettle, calcium deposits may remain visible despite the use of a lime protection system or a water softening system. This is because water softeners and lime protection systems do not provide lime-free water. You always leave a residual water hardness in the water or leave the minerals calcium and magnesium completely in it. Calcium deposits in the kettle are not an indicator that a water softening system is not working. The kettle is just a very specific application, as very high temperatures are reached here and water evaporates.
Lime in water consists primarily of the minerals calcium and magnesium. It is therefore not harmful to health. Water softening systems or descaling systems with salt replace these minerals for sodium. This is known as the so-called ion exchange. As a result, the water hardness decreases and the sodium level rises.
AQON PURE lime protection systems leave the minerals calcium and magnesium in drinking water. There is no increase in the sodium level. AQON PURE maintains drinking water quality as it comes from your local drinking water supplier. Because Germany is one of the best in the world.
Another advantage of AQON PURE lime protection systems is that no chloride is released into the waste water. This is because water softening systems or descaling systems with salt release chloride into the waste water. Depending on the number of such softening systems, the exposure to chloride in a supply area can measurably increase. In California, for example, in 2006, then-Governor Arnold Schwarzenegger passed a law prohibiting the use of water softening systems with salt in certain regions of California, as chloride can damage habitats and plants.
In 2023, the TV program “Bauen &Wohnen” reported on AQON PURE and what makes our systems so special compared to conventional water softening systems.
In 2021, a camera team accompanied AQON PURE for two days. From function to installation to satisfied customers, the TV show provides an insight into the success story.
First things first: The terms descaling system or water softening system are not protected. There are numerous products that combat lime problems in various ways. In general, it can be said that these are aggregates for products that prevent or reduce calcium deposits. The difference is whether the water hardness is reduced (e.g. Water softening system with salt through ion exchange) or whether the minerals calcium and magnesium (lime) should remain in tap water (Lime protection system). In any case, descaling systems are useful if you have hard water. You can find out more about this here: Why are descaling systems useful and what processes are there?
40% of all German households are in a region with hard water. Hard water contains a particularly large amount of lime. There are various water softening systems to reduce lime problems. However, it is crucial to know whether you have hard water in your house at all. Determine your water hardness free of charge here. Before purchasing a water softening system, it is also worthwhile to know the differences and how to compare offers. We explain in a comprehensible way How to find the right descaling system.
If a manufacturer or supplier of water softening systems or descaling systems with salt promises you lime-free water, then you should be careful. Conventional softening systems (ion exchangers) produce soft water, but not completely lime-free tap water. For corrosion-chemical reasons, residual water hardness is always left in the water in these systems. A certain degree of calcium deposits is therefore still to be expected here as well. The same applies to lime protection systems, as the water hardness remains unchanged here. There is no water treatment system that completely dispenses with cleaning (surface cleaning). Find out more about the Disadvantages of water softening systems with salt. AQON PURE lime protection systems do not have these disadvantages. AQON PURE makes it easier to handle lime in your own home. But especially where water evaporates, there is no need to reach for the cleaning cloth from time to time.
AQON PURE is not a softening system in the traditional sense. AQON PURE is a lime protection system that leaves the valuable minerals calcium and magnesium in drinking water. The effectiveness of our lime protection systems has been proven in a 18-month study reviewed. By the way: AQON PURE offers an installation service at a fixed price - through over 400 specialist companies in the HVAC sector in Germany alone. As a result, AQON PURE can be easily retrofitted to any domestic water connection.
Up and running: Get the offer in just 2 minutes - optional with installation at a fixed price.
Based on your information, we will determine the optimal product size for you and create an individual offer. In doing so, we even check the water analysis values of your local supplier in parallel.
We will send you an individual offer within a very short time — including installation service at a fixed price if you wish.
The installer will arrange an installation appointment with you. Our service is carried out exclusively by selected master companies.
The installer professionally installs your AQON PURE in just 1 — 2 hours.