Method and apparatus for casting of hollow bodies

A method for casting sanitary appliances hollow bodies in low pressure casting in which 1.1 a casting mold (5) is produced, 1.2 the casting material is introduced into cavities of the mold (5), 1.3 the displaced air and the forming gases through vent channels (6, 9, 10) emanate and 1.4 the outflow of gases is assisted by vacuum, characterized in that a plurality of vent channels (6, 9, 10) of each set is separated under reduced pressure.