Combination of a single-station reverse osmosis device with a hemodialysis device

A combination of a single-station reverse osmosis device (RO device) with a hemodialysis device (HD device), the RO device comprising a filter with a membrane which separates a primary circuit from a secondary circuit, a raw-water supply line terminating in the primary circuit and the secondary circuit being connected to a water inlet valve of the HD device via a connection line containing a conductivity measuring device, and a concentrate connection of the primary circuit leading to an outlet via a concentrate line containing a flow-resistance means,

• wherein the connection line is provided with a buffer chamber for permeate which serves on the one hand a faster permeate supply into the HD device and on the other hand a generation of a negative transmembrane pressure, and
• wherein, upon request by the HD device, the permeate flows either via the water inlet valve into the HD device or via a flushing valve of the HD device to the outlet.