The water hardness in Hamburg - Allermöhe (21035) is 15 °dH and is therefore hard in the hardness range.
With hard water, there is a risk of lime forming in your household appliances and piping.
You can lower the water hardness with a water softening system.
This value is based on 1 values submitted by our users.
The average water hardness in Hamburg is 15 °dH.