For fully automatic supply of the dialysis machines, a pump conveys the various concentrates from storage tanks into the high-level concentrate distribution reservoir depending on the level. Due to the static slope, the concentrate flows towards the dialysis machines. This ensures a constant inlet pressure to each machine. The high-level distribution reservoir always contains sufficient concentrate to supply an entire dialysis shift. This is another important safety feature of the Herco system. Unlike conventional systems, the Herco system uses the concentrate pump only during the filling of the high-level distribution reservoir, increasing its service life considerably.