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A Berlin housing association installed Vulcan S10 on the warm water circulation and Vulcan S50 on the cold water main. After a 6-week test, tenants reported less limescale on fixtures and appliances. The cooperative decided to keep the technology.
Established Cooperative
Germany
Vulcan Units
Organization: Housing Association Altglienicke (founded 1957)
Location: Berlin, Germany (serving Treptow, Prenzlauer Berg, Rudow, and Zeuthen)
This Berlin housing association needed to solve hard water problems throughout their domestic water supply. They sought a solution that would protect both cold and hot water systems across their portfolio of apartments.
Installation: 1 x Vulcan S50 on the cold water pipe
Protects all cold water lines throughout the building, including kitchen prep areas, bathroom sinks, and drinking water.
Installation: 1 x Vulcan S10 on the warm water circulation system
Protects hot water heaters, recirculation loops, and all hot water fixtures. Ensures consistent hot water delivery and prevents scale buildup in heating elements.
This housing association installed two Vulcan models for complete protection:
Tenant feedback confirmed: "There was actually less limescale build-up on sanitary fixtures and kitchen appliances."
Kettle difference: "Now only needs to be wiped clean and no longer requires strong cleaning agents to remove limescale."
Laundry confirmed: "The laundry also confirms better washing results."
"We decided to keep the technology because our tenants and colleagues told us that there was actually less limescale build-up on sanitary fixtures and kitchen appliances."
"The test period was still too short for our fountain, but based on our experience in the household, we hope to be able to remove the limescale deposits from the columns more effectively in the future."
— T. Franzke, Authorized Signatory
After just 6 weeks, the results were clear enough for management to commit to keeping the technology permanently.
Founded in 1957, this Berlin cooperative has been synonymous with satisfied members and tenants who feel at home in their apartments ever since. They own apartments in multiple Berlin districts:
Treptow
Prenzlauer Berg
Rudow
Zeuthen
Their commitment to tenant satisfaction led them to test and ultimately adopt Vulcan technology across their portfolio.
Residents notice the difference and provide positive feedback.
Kettles, laundry, and kitchen appliances stay scale-free.
Sanitary fixtures remain cleaner with less maintenance.
Less cleaning and fewer repairs for management staff.
Max Pipe Diameter: | 5 inches |
Max Water Flow: | 300 GPM |
Wattage: | 2.25 W |
Dimensions: | 7.9" x 4.9" x 1.6" |
Max Pipe Diameter: | 3 inches |
Max Water Flow: | 65 GPM |
Wattage: | 2.25 W |
Dimensions: | 7.5" x 4.7" x 1.6" |
Pipe Materials (both models): All types (iron, copper, stainless steel, PVC, PEX)
Maintenance: Zero for all models
This Berlin housing association demonstrates the power of tenant feedback. Within 6 weeks, residents noticed the difference—cleaner fixtures, easier-to-clean kettles, and better laundry results. The cooperative made the decision to keep Vulcan based on what their tenants told them.
Your tenants will notice the difference. Just ask the Berlin cooperative.
Waslix provides non-chemical, maintenance-free scale prevention using Vulcan technology. This case study documents a Vulcan S10 and S50 installation protecting a Berlin housing association's water systems.
Germany
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