The Rhin drains a large part of the Krempe Marsh, and flows into the Glückstadt outer harbor via two locks (Kleine and Große Rhinschleuse) and a pumping station, ultimately reaching the Elbe.

[1] The Rhine and its tributaries drain the marshes and wet meadows to the west of the Krückau and Langenhalsener Wettern basins and to the east of the Stör.

Its mouth is located below sea level, resulting in only being able to drain at low tide.

Until 1951, its waters were passively discharged through two drainage sluices, which opened automatically when the Elbe level was lower than that of the Rhine.

This station protects an area of about 1,000 hectares (2,500 acres) from the risk of high water.