Löhnert GmbH aqua blue

aqua blue drinking water treatment, alternative water softening system

Löhnert GmbH aqua blue

TOP SERVICE PROVIDER 2026
TOP RECOMMENDATION 2026
4.79 out of 5
Excellent
319 Reviews
Contact information
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,...

Contact information

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

Contact person
Thomas Löhnert

98% Recommended
Excellent (4.81)
Cost-performance ratio
Good (4.28)

According to the personal experiences shared by reviewers on ProvenExpert, many reported high satisfaction with the product quality they experienced, noting it met their expectations effectively. Reviewers also highlighted the positive impact on customer experience, indicating that the solutions provided were effective in addressing their needs. Additionally, they expressed satisfaction with improvements in water quality, reflecting a strong overall positive sentiment regarding their experiences.

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

319 Reviews on ProvenExpert.com

4.79 out of 5
Excellent
4.67 out of 5
Excellent
Recommendation
The water is really good! We haven't bought bottled water since then! Plus, we don't have to descale our kitchen appliances nearly as often! I'd definitely buy it again!
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Customer review & rating for:
aqua blue Kalkschutz und Quellwasserqualität
09/24/2026Winfried I.
5.00 out of 5
Excellent
Recommendation
It sounds almost too good to be true that it actually works; that’s why real-life experiences are so important.
Those were the deciding factor for me—and, of course, the chance to try it out.

I stopped the trial after just one week and bought it right away!

This thing about the limescale in the bathroom and kitchen sink—could it just be my imagination that the stains come off more easily?

My hair was the game-changer and the immediate reason I bought it! It’s past my shoulders and quite thick, so washing and detangling it takes a lot of time and chemical products.
Suddenly, I have smooth, easy-to-manage, shiny hair with plenty of volume—no problem at all! With just a quarter of the usual amount of shampoo and no conditioner!

My husband didn’t know anything about it, but he noticed the difference in my hair too and thought I was using a different shampoo.

I’d previously taken our salt-based water softener out of service… it’s truly unbelievable that this “thing” works better.

Now I’d like to try this in our apartment building, but I still need some tips on how to protect the pipes.

And thanks again for the great service and the hassle-free trial option.
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Customer review & rating for:
aqua blue Kalkschutz und Quellwasserqualität
09/07/2026B.
4.67 out of 5
Excellent
Recommendation
I'm pleasantly surprised by how effective it is.
I'll definitely recommend it to my customers as well.
I know a lot of people who would like to do something like this.
I advise customers that we install a straight pipe section so that the entire device rests against the pipe.
Best regards, Wittmann
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Customer review & rating for:
aqua blue Kalkschutz und Quellwasserqualität
09/01/2026Anonymously
5.00 out of 5
Excellent
Recommendation
Ever since we started using the system, we’ve noticed how soft the water tastes. The women in the house say their hair is much softer and they no longer need conditioner. We’ve found that we can remove limescale from the shower, egg cooker, and coffee maker with just our bare hands. We’re thrilled with the system! The customer support is great, too! They even respond on WhatsApp in the evenings and point out ways to improve the installation. We’d definitely recommend Aqua Blue!!
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Customer review & rating for:
aqua blue Kalkschutz und Quellwasserqualität
08/31/2026Jochen T.
5.00 out of 5
Excellent
Recommendation
At first, I was very skeptical about the whole thing. Now that the trial period is over, I can confirm that the water quality has improved significantly. The water tastes good now, so we’re pouring it into a carafe and drinking it. Before, we drank only Volvic. There’s hardly any difference, so we must have done everything right. We can’t comment on the limescale yet. Best regards, T. Henschel!
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Customer review & rating for:
aqua blue Kalkschutz und Quellwasserqualität
08/27/2026Torsten H.
5.00 out of 5
Excellent
Recommendation
Before we installed the Aqua Blue unit, our water tasted much more bitter—it’s a huge improvement in taste!
Plus, limescale no longer sticks as firmly to pots, the kettle, the faucets, or the shower screen.
I was happy to keep the unit after the trial period.
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Customer review & rating for:
aqua blue Kalkschutz und Quellwasserqualität
08/26/2026Monika K.
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.
Show original
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
Show original
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)
Show original
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.
Show original
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.
Show original
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
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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: 09/24/2026   |  Report profile

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