1806
From the Cachat source...
Seduced by the quality of the natural water flowing from the source in his garden, Monsieur Cachat began selling it to the local community. After discovering its therapeutic qualities, people wanted more than just to drink the water, they wanted to be fully immersed in it. So, in 1806, the first thermal spa opened. In 1826, the first bottling facility was installed on the site of the Cachat source. Its popularity attracted visitors from all over Europe and beyond.