At the Kochbrunnenspringer, you can clearly see the sinter deposits for which Wiesbaden was known in Roman times and which were used as "Mattiac balls" to dye hair. The reddish-yellow coating grows by seven centimetres every year. It often needs to be removed so that it does not smother the shell-shaped well, and this will be done Monday, May 5, through Wednesday, May 7. Anyone who would like to receive a mineral deposit is welcome to collect it on site until 12 noon on Tuesday, May 6.

The Kochbrunnen is one of Wiesbaden's so-called primary springs. Only a small part of the water feeds the drinking point in the Kochbrunnen pavilion and the "Kochbrunnenspringer". The main volume is fed into the treatment plant at the Kaiser-Friedrich-Therme, and from there it enters the city's extensive thermal water network. Wiesbaden's spring water is particularly valuable for alleviating rheumatic and orthopaedic conditions.

Further information can be found at http://www.mattiaqua.de (opens in a new tab).

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