Löhnert GmbH aqua blue

aqua blue drinking water treatment, alternative water softening system

Löhnert GmbH aqua blue
306 Reviews i
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out of 307 reviews
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aqua blue – The alternative to traditional water softeners, without salt or chemicals. Effective prevention against limescale deposits in water pipes, kitchens, and bathrooms. Protects pipes and appliances from limescale damage. At the same time,...
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Löhnert GmbH aqua blue
Münchhofstr. 12a
79106 Freiburg
Germany
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Contact person
Thomas Löhnert

Websites

Review from 06/15/2026  
4.00 out of 5
Good
Recommendation
Quality
Information
Delivery
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Top competencies

Professional competency

4.93 out of 5
14 Reviews

Product quality

5.00 out of 5
13 Reviews

Customer satisfaction

5.00 out of 5
13 Reviews

306 Reviews on ProvenExpert.com

4.00 out of 5
Good
Recommendation
The water quality has improved, and we hope our hot springs won't need the plumber to come out so often to replace calcified valves. Best regards
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Customer review & rating for:
aqua blue Kalkschutz und Quellwasserqualität
06/15/2026Anonymously
5.00 out of 5
Excellent
Recommendation
Despite my initial skepticism, I'm still absolutely thrilled. They've kept all their promises—and even exceeded them. The customer service and after-sales support are excellent!!!!
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Customer review & rating for:
aqua blue Kalkschutz und Quellwasserqualität
06/08/2026Guenter B.
4.33 out of 5
Good
Recommendation
Very friendly, helpful, and always approachable. The product works well, even if the mechanism of action remains a bit unclear. But it works! I would buy it again.
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Customer review & rating for:
aqua blue Kalkschutz und Quellwasserqualität
06/04/2026Anonymously
5.00 out of 5
Excellent
Recommendation
Thank you very much to the Senior Manager for the detailed information about your product!
We already had a countertop water filtration system from Arktisquelle. That system used 7 filters to treat our water and always showed a TDS reading of at least 12 or higher.
After installing the Aqua Blue unit, this value has now dropped to 2–4, as if by magic!
Anyone who needs scientific proof of the water treatment provided by Aqua Blue is welcome to contact me. I’d be happy to share my positive experiences and thank you for the great system!
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Customer review & rating for:
aqua blue Kalkschutz und Quellwasserqualität
05/31/2026A.
5.00 out of 5
Excellent
Recommendation
The limescale that's still leaving stains is easy to remove.
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Customer review & rating for:
aqua blue Kalkschutz und Quellwasserqualität
05/27/2026Anke F.
4.67 out of 5
Excellent
Recommendation
The limescale is easy to remove; small droplets form
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Customer review & rating for:
aqua blue Kalkschutz und Quellwasserqualität
05/26/2026Anonymously
5.00 out of 5
Excellent
Recommendation
It lives up to its promises (quick installation, the water feels softer, virtually no limescale—which is easy to wipe away)
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Customer review & rating for:
aqua blue Kalkschutz und Quellwasserqualität
05/18/2026Anonymously
5.00 out of 5
Excellent
Recommendation
Delivery and installation were quick and easy. The results were also visible right away.
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Customer review & rating for:
aqua blue Kalkschutz und Quellwasserqualität
05/08/2026Anonymously
5.00 out of 5
Excellent
Recommendation
The system lives up to its promises. The appliances need to be cleaned much less often, and there are hardly any "water marks" left on the shower. I would buy it again in a heartbeat.
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Customer review & rating for:
aqua blue Kalkschutz und Quellwasserqualität
05/06/2026Jörg M.
5.00 out of 5
Excellent
Recommendation
The water in the Swabian Alb is very hard, which leads to heavy, stubborn deposits in pipes and especially in appliances used for cooking (kettles, coffee makers, aerators). With aqua blue, these deposits are softer and can be easily removed with citric acid. The “drinking water” straight from the tap tastes better and actually has a blue tint in the glass. Before the “aqua blue system,” I used a “magnetic system” for many years, which also altered the calcium structure. Aqua blue has a significantly better effect.
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Customer review & rating for:
aqua blue Kalkschutz und Quellwasserqualität
05/05/2026Günther K.
5.00 out of 5
Excellent
Recommendation
I bought the Aqua Blue unit for my rental apartment in Spain.
The tenants are very satisfied; the tap water feels noticeably softer to them, and the limescale deposits on sinks and faucets are much easier to remove.
Back home in the Rhineland, I’ve been using it since last year—the limescale doesn’t disappear, but it’s much easier to remove, and the water feels more pleasant on the skin.
In that respect, both my wife and I, as well as our tenants in Spain, are very satisfied.
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Customer review & rating for:
aqua blue Kalkschutz und Quellwasserqualität
04/23/2026D.
5.00 out of 5
Excellent
Recommendation
I'm really impressed by how much the limescale on my kitchen appliances has decreased. I would have thought it might go down by about 50%, but in my case it's between 80 and 90%.
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Customer review & rating for:
aqua blue Kalkschutz und Quellwasserqualität
04/23/2026B.
5.00 out of 5
Excellent
Recommendation
After just one day, we noticed such a noticeable improvement in the water quality that our enthusiasm for the system knows no bounds.
You can feel the difference even when washing your hands, and in the shower, the way your skin and hair feel is completely different.
Tea and coffee taste good again without having to constantly buy bottled water, and the tap water is finally enjoyable to drink.
The portable device also turns any unpleasant water on the go into a fresh, tasty beverage in a matter of seconds.
A technology we wholeheartedly recommend and service that’s exceptionally good.
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Customer review & rating for:
aqua blue Kalkschutz und Quellwasserqualität
04/21/2026Klaus J.
4.00 out of 5
Good
Recommendation
Less limescale on your faucets and softer water for your skin and hair.
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Customer review & rating for:
aqua blue Kalkschutz und Quellwasserqualität
04/16/2026Anonymously
4.67 out of 5
Excellent
Recommendation
Very simple and quick installation. The water is immediately softer, and limescale on faucets and objects is easier to remove. A microfiber cloth for chrome alone is sufficient—no cleaning agents needed. Limescale buildup is generally reduced. However, the effect seems less noticeable on glasses.
We have connected AquBlue to the pipe leading to the drinking water faucet behind our reverse osmosis drinking water filtration system to produce hexagonal drinking water. This gives us a great sense of having optimal drinking water with the best bioavailability and purity.
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Customer review & rating for:
aqua blue Kalkschutz und Quellwasserqualität
04/06/2026Joachim S.
5.00 out of 5
Excellent
Recommendation
Very satisfied, easy to install, and most importantly, no limescale
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Customer review & rating for:
aqua blue Kalkschutz und Quellwasserqualität
03/30/2026Daniel W.
5.00 out of 5
Excellent
Recommendation
The personal contact via phone and email, as well as the installation tips I received after sending photos of my setup—but above all, the noticeable improvement in the quality of our tap water—really won me over!
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Customer review & rating for:
aqua blue Kalkschutz und Quellwasserqualität
03/26/2026Anonymously
4.67 out of 5
Excellent
Recommendation
Based on your description of the product, we can confirm that it works as advertised. The water tastes better than before, but most importantly, the limescale buildup has decreased significantly and is easier to remove, just as you described. We would definitely recommend your product to others.

Brigitte and Klaus Sandfort, Telgenkamp 5a, 48268 Greven
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Customer review & rating for:
aqua blue Kalkschutz und Quellwasserqualität
03/23/2026Klaus S.
5.00 out of 5
Excellent
Recommendation
The water feels softer, cooler, and tastes fresher. The results are incredible!
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Customer review & rating for:
aqua blue Kalkschutz und Quellwasserqualität
03/22/2026Anonymously
4.67 out of 5
Excellent
Recommendation
The product explanation was excellent, and the support during installation was exemplary. Of course, you can’t expect limescale that has built up over 16 years to disappear in just a few weeks. In any case, the water quality has improved.
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Customer review & rating for:
aqua blue Kalkschutz und Quellwasserqualität
03/16/2026Anonymously
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* All reviews and experiences about Löhnert GmbH aqua blue are the subjective opinions of those who compose and submit them  |  The profile owner is responsible for the contents of this page  |   Profile active since 07/09/2019  |  Last update: 06/15/2026   |  Report profile

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