A typical dutch comprehension: watermanagement. Battle against the water, creation of land and the realisation of ports, canals for traffic and transport are activities through which the Netherlands have established themselves. The Sloten Mill for example has the task to pump the superfluous water from the lower levelled polder. The Ringvaart near the Mill surrounds the Haarlemmermeerpolder. This ancient lake has been drained by means of three big pumping-strations: the Cruquius at Vijfhuizen, de Lijnden near Halfweg and the Leegwater near the Kaag.
In 1850 this gigantic job was started. The at that time very modern pumping stations managed the work of more than 80 mills and transported the water through the Ringvaart.
The steampumping station in Halfweg is the oldest still active pumping station in the world. It served as “boezem” pumping station (system of reservoirs) to pump the superfluous water first from the Ringvaart to the IJ (in Amsterdam) and later to the Northseacanal. At present this is being done by modern pumping stations.
Twelve times a year, during so-called “pumping days” the old pumping station can be seen in full operation.