The invention relates to an apparatus for preparing ready-to-use solutions for peritoneal dialysis that has a sterilization compartment； a filling line leading to the sterilization compartment and having a connector arranged at its end at the compartment side for connecting a disposable； a water treatment system arranged in the filling line； and a sealing system. The invention further relates to a disposable for preparing ready-to-use solutions for peritoneal dialysis in such an apparatus and to a method of preparing ready-to-use solutions for peritoneal dialysis using such an apparatus and such a disposable.
