The Rondomat Duo 2. Generation
High-performance duplex softener for continuous operation
The BWT Rondomat Duo is the first thermally insulated duplex softener in series production—engineered to deliver uninterrupted 24/7 soft water for large residential and commercial buildings.
Key Benefits
Special Highlights
First softener with
complete thermal
insulation
of the control valve and resin tank. Prevention of condensation and excessive heating of drinking water. For optimal hygiene.
360 degree operating concept
Auto-check function and automatic online software updates bring optimized operational reliability with scheduled maintenance intervals.
Auto-check function and automatic online software updates bring optimized operational reliability with scheduled maintenance intervals.
BWT
control panel
platform for optimal
usability
Available exclusively with all BWT water softeners from Germany. 1000x proven in BWT Perla models.
Available exclusively with all BWT water softeners from Germany. 1000x proven in BWT Perla models.
BWT Best Water app
Information, security, comfort, and a range of benefits. Your personal water assistant for numerous BWT products.
Information, security, comfort, and a range of benefits. Your personal water assistant for numerous BWT products.
Ensuring perfect
water hygiene
Thanks to hygiene operating process with IoClean CT, thermal insulation.
Thanks to hygiene operating process with IoClean CT, thermal insulation.
Perfect
ergonomics
Hinge for clear display readability, with the option to adjust the tilt angle.
Hinge for clear display readability, with the option to adjust the tilt angle.
Safety from
water damage
Immediate notification through the AQA Safe/Watch/Guard features.
5“
glass touch display
Sophisticated and with intuitive operation menu structure.
Plug & Play –
easy to get started
Assistance systems make starting up the system a child‘s play.
Discover more water softeners for apartment houses & commercial usage
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Curious about OnePipe Pearlwater?
Download
FAQ
What is the difference between regular soft water and BWT’s soft, mineralized water?
Regular soft water still contains some residual hardness (lime), which can lead to mineral deposits over time. With OnePipe Pearlwater Technology, you no longer have to compromise: The water could be softened even to 0°dH, making it completely limescale-free. At the same time, the BWT Pearlwater Mineralizer enriches the water with essential minerals such as magnesium, silicates, and bicarbonates, resulting in healthy, best-tasting drinking water without any loss of flavor. Enjoy perfect water straight from your tap, without worrying about limescale buildup.
How is the BWT Pearlwater system installed in multi-family homes or apartments?
In multi-family homes and apartment buildings, a central softening system (such as the Rondomat duoMAXX) is installed to supply the entire building with soft water. Additionally, each apartment can be equipped with the BWT Pearlwater Mineralizer Set, which enriches the already softened water with essential minerals. This way, all residents benefit from perfectly mineralized, limescale-free water straight from their own tap, enjoying both health benefits and the best taste.
What are the benefits of using soft and mineralized water at home?
Soft water protects your pipes and appliances from limescale buildup, reducing maintenance costs. Unlike other softening systems that leave some residual hardness, OnePipe Pearlwater ensures even a complete descaling to 0°dH. The BWT Pearlwater Mineralizer then enhances the water with essential minerals, delivering the best taste and health benefits.
Do I need to install a new faucet to use the BWT Pearlwater system?
No, the BWT Pearlwater Mineralizer Set can be easily installed under your existing faucet. This allows you to enjoy completely limescale-free water, thanks to OnePipe Pearlwater Technology, as well as perfectly mineralized water with outstanding taste—all without additional installations or modifications.
How easy is it to maintain the OnePipe Pearlwater system?
The OnePipe Pearlwater System and the BWT Pearlwater Mineralizer are designed for minimal maintenance. The central softener ensures limescale-free water with very little upkeep. Using the BWT Best Water App, you can easily monitor and manage the system. The Pearlwater Mineralizer Set continuously enriches the softened water with essential minerals, ensuring you always have perfectly mineralized water with minimal effort and maximum efficiency.
Where can I purchase the BWT Pearlwater system?
The BWT Pearlwater System and BWT Pearlwater Mineralizer Set are available from all BWT drinking water experts. These specialists will provide expert advice and help you choose the perfect system for your home or building. Visit a BWT dealer near you or contact us for more information.