As early as 1619, a brine pipeline was built from Bad Reichenhall to Traunstein, which was in operation for 350 years.
The salt mines needed a lot of wood to expand the tunnels. In particular, a lot of firewood to heat the brine and extract the salt from it. Wood is very difficult to transport. So they did it the other way around. With the brine pipeline from the Reichenhall saltworks to the brewing sites in Traunstein (1619) and Rosenheim (1810), the brine was brought closer to the wood reserves by pipeline, as the wood could be floated here more quickly and more easily through the large rivers. It was much less effort and therefore cheaper to let the brine flow through a pipeline near Traunstein/Rosenheim, for example, than the other way around, transporting the heavy wood via rivers to Bad Reichenhall in a complicated way.
400 years ago, clever Bavarians built the world's first pipeline. Salt flowed in hollow tree trunks in a 31 km long brine pipeline from Reichenhall to Traunstein and overcame mountains. A good 500 steps lead in a fall line up to the old Nagling well house to the highest point. At the top is the high reserve from 1817, which held around 1200 cubic meters of brine and ensured that production did not stop in the event of a leak.