Löhnert GmbH aqua blue

aqua blue drinking water treatment, alternative water softening system

Löhnert GmbH aqua blue

TOP SERVICE PROVIDER 2026
TOP RECOMMENDATION 2026
4.78 out of 5
Excellent
313 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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Contact information

Löhnert GmbH aqua blue
Münchhofstr. 12a
79106 Freiburg
Germany
Directions

Contact person
Thomas Löhnert

Websites

98% Recommended
5 stars 274
4 stars 34
1 star 1
Quality
Service on offer
Information
Processing
Delivery
Customer service
Excellent (4.80)
Cost-performance ratio
Good (4.28)

As reviewers on ProvenExpert report, they experienced high effectiveness and performance from the water softeners. They noted significant improvements in water quality, which enhanced their overall satisfaction with the product. Additionally, a strong emphasis on customer service contributed positively to their experiences. Reviewers highlight the product's capability to address specific water quality challenges effectively.

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

313 Reviews on ProvenExpert.com

4.78 out of 5
Excellent
5.00 out of 5
Excellent
Recommendation
It really makes a big difference—with our extremely hard water, the limescale is much easier to remove, and the water tastes better and feels softer, too.
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Customer review & rating for:
aqua blue Kalkschutz und Quellwasserqualität
08/05/2026Anonymously
4.33 out of 5
Good
Recommendation
Our water is definitely softer, and the aerators don't get clogged as quickly anymore. We've had a really good experience with it; I'm still curious to see what the filters will look like at my next maintenance appointment for our heat pump!
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Customer review & rating for:
aqua blue Kalkschutz und Quellwasserqualität
07/28/2026Denis B.
Löhnert GmbH aqua blue Comment from Löhnert GmbH aqua blue:
Hello,
Thank you very much for your excellent review. We are very pleased that you are satisfied with aqua blue and that you are sharing the positive changes in your home with us!

We wish you all the best,
Your aqua blue Team
5.00 out of 5
Excellent
Recommendation
There are hardly any visible limescale deposits left. The surfaces are easy to wipe clean. The water feels softer than before. We haven't had to descale our kettle since then. Thank you very much.
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Customer review & rating for:
aqua blue Kalkschutz und Quellwasserqualität
07/20/2026Anonymously
Löhnert GmbH aqua blue Comment from Löhnert GmbH aqua blue:
Hello,

Thank you very much for your 5-star review. We’re very pleased that your water is softer with aqua blue and that descaling intervals have been extended or are no longer necessary at all.
We wish you all the best!

Your aqua blue Team
4.67 out of 5
Excellent
Recommendation
Our water is very hard. After installing your water softener, we noticed that the limescale deposits at the bottom of our electric kettle could still be wiped away with a rough dish sponge even after using it three times—something that wasn’t possible before.
The water has become softer and tastes better, too.

Manfred Weerts, Wangen i. A.
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Customer review & rating for:
aqua blue Kalkschutz und Quellwasserqualität
07/17/2026Manfred Weerts, Wangen i. A.
Löhnert GmbH aqua blue Comment from Löhnert GmbH aqua blue:
Hello,

Thank you very much for your positive review and for sharing your experience with aqua blue with us. We are very pleased to see positive changes, especially regarding the kettle and water quality.
We wish you all the best!
Your aqua blue Team
4.67 out of 5
Excellent
Recommendation
You'll notice the difference pretty quickly—the limescale changes so that it doesn't cause any problems. One wipe, and the "limescale stain" is gone. Even after showering, your skin doesn't feel dry.
If you have any questions, they'll help you personally over the phone.
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Customer review & rating for:
aqua blue Kalkschutz und Quellwasserqualität
07/02/2026T F.
Löhnert GmbH aqua blue Comment from Löhnert GmbH aqua blue:
Hello,
Thank you very much for your wonderful review. We're so glad you're able to experience the simplicity of aqua blue, and we appreciate your praise for our customer service!
We wish you all the best!

The aqua blue Team
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
Löhnert GmbH aqua blue Comment from Löhnert GmbH aqua blue:
Hello,
Thank you very much for your review. We are very pleased that your water quality has improved with aqua blue.
We wish you all the best,
Your aqua blue Team
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.
Löhnert GmbH aqua blue Comment from Löhnert GmbH aqua blue:
Hello,

Thank you very much for your 5-star review. We’re very pleased that aqua blue has even exceeded your expectations and that you value our customer service so highly.
Thank you very much, and all the best,

The aqua blue Team
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
Löhnert GmbH aqua blue Comment from Löhnert GmbH aqua blue:
Hello,

Thank you very much for your positive review and your trust in aqua blue. While it can be difficult to grasp exactly how aqua blue works, the positive changes are all the more evident to see and feel.
We wish you all the best for the future!

The aqua blue Team
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.
Löhnert GmbH aqua blue Comment from Löhnert GmbH aqua blue:
Hello,

Thank you very much for your excellent review and your feedback on aqua blue! We’re very pleased that you’re satisfied with the device and appreciate your recommendation!
We wish you all the best,

The aqua blue Team
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.
Löhnert GmbH aqua blue Comment from Löhnert GmbH aqua blue:
Hello,
Thank you very much for your 5-star review. We're very glad that you can now remove limescale more easily with aqua blue.

Best regards,
The aqua blue team
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
Löhnert GmbH aqua blue Comment from Löhnert GmbH aqua blue:
Hello,
Thank you very much for your positive review. We're very glad that you can now remove limescale more easily with aqua blue.
Best regards,
The aqua blue team
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
Löhnert GmbH aqua blue Comment from Löhnert GmbH aqua blue:
Hello,
Thank you very much for your 5-star review and for sharing your experience with aqua blue. We are very pleased that the device is living up to its promises and that you are noticing positive changes.

Best regards,
The aqua blue Team
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
Löhnert GmbH aqua blue Comment from Löhnert GmbH aqua blue:
Hello,
Thank you very much for your 5-star review. We're very pleased that you're satisfied with aqua blue and appreciate the speed of the entire process.

Best regards,
The aqua blue Team
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.
Löhnert GmbH aqua blue Comment from Löhnert GmbH aqua blue:
Hello,
Thank you very much for your 5-star review. We are very pleased that you are satisfied with aqua blue and have noticed the positive changes in your household appliances and shower.

Best regards,
The aqua blue Team
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.
Löhnert GmbH aqua blue Comment from Löhnert GmbH aqua blue:
Hello,
Thank you very much for your 5-star review and for sharing your experience with aqua blue with us. We’re very pleased that you’re satisfied with aqua blue and the positive changes it’s brought, and that you’ve now found the right device for you.

Best regards,
The aqua blue Team
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.
Löhnert GmbH aqua blue Comment from Löhnert GmbH aqua blue:
Hello,
Thank you very much for your 5-star review and for placing your trust in aqua blue once again!
We are very pleased that aqua blue is now also making its home in Spain and bringing about positive changes there as well—thank you very much for sharing your experience and that of your tenants with us!

Your aqua blue Team
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.
Löhnert GmbH aqua blue Comment from Löhnert GmbH aqua blue:
Hello,
Thank you very much for your 5-star review and for sharing your experience with aqua blue with us. We are very pleased that you are satisfied with aqua blue and the positive changes it has brought, and that you have achieved an almost complete reduction in scale with aqua blue.

Best regards,
The aqua blue Team
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.
Löhnert GmbH aqua blue Comment from Löhnert GmbH aqua blue:
Hello,
Thank you very much for your 5-star review and for sharing your experience with aqua blue with us. We’re very pleased that you’re satisfied with aqua blue and the countless positive changes it has brought. Thank you also for your appreciation of our customer service. Since that is the be-all and end-all for us, we are naturally all the more pleased when our customers are very satisfied with it as well.

Your aqua blue team
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
Löhnert GmbH aqua blue Comment from Löhnert GmbH aqua blue:
Hello,

Thank you very much for your positive review. We’re glad that, thanks to aqua blue, you’re now enjoying softer limescale and softer water in your home.

Best regards,
The aqua blue Team
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.
Löhnert GmbH aqua blue Comment from Löhnert GmbH aqua blue:
Hello,

Thank you very much for your positive review and for sharing your experience with aqua blue with us. We’re very pleased to hear that the self-installation was quick and easy and that you’ve already noticed the first positive changes.
When used with a water filter, you’ll enjoy perfect, clean drinking water!

Best regards,
The aqua blue Team
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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: 07/29/2026   |  Report profile

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