Abstract: The invention comprises a method and an apparatus for the waste disposal of light and/or medium and/or heavy foams employed in connection with fire extinguishing or the like. The foam is sucked in by a blower or the like, is disintegrated and in the following, is concentrated in a following container. The larger part of the air is thereby separated from the foam and the foam is reduced in a further-following separating stage to the volume of the initially employed foaming agent water mixture. The separating stage can be a centrifuge or a cyclone. Upon waste disposal of a low foamed heavy foam, this heavy foam is sucked up with a pump and in the following the pump is separated. In both cases following, the mixture is fed to a further waste disposal stage.

Abstract: The invention relates to a formation of a release element, where the upper end and the lower end of a cylindrical or conical glass tube are closed by means of inwardly directed plugs.