The Machine de Marly, also known as the Marly Machine or the Machine of Marly, was a large hydraulic system in Yvelines, France, built in 1684 to pump water from the river Seine and deliver it to the Palace of Versailles.King Louis XIV needed a large water supply for his fountains at Versailles. Before the Marly Machine was built, the amount of water delivered to Versailles already exceeded that used by the city of Paris, but this was insufficient, and fountain-rationing was necessary.