The blue gold!

The long-distance water pipeline transported fresh, clean spring water from the Karlsquelle spring near Heidesheim, almost 7 kilometres away, underground to the Palatinate region.

Sections of the water pipeline can also be viewed at the Winzerkeller and in Wackernheim "An der Bachwiese", where they are exhibited above ground. Near Wackernheim, there is also a small adventure trail along the signposting to the water pipeline, which also leads to the source area at the Heidesheimer Sandmühle, for example. To the west of Ingelheim, on Heidesheimer Weg, a section of the pipeline has been uncovered in its original position and placed under cover.