An adapter for a container includes a bracket having an annular sidewall and at least one projection extending interiorly from an external surface of the sidewall, wherein the at least one projection includes a sloped surface.

An attachment mechanism for a container includes a housing with a locking element extending therefrom. At least one opening extends through the locking element to selectively receive a portion of the container. A resilient member is disposed within the locking element.

An opening tool for a locking cap of a fire hydrant includes a collar with multiple protrusions that can attach to corresponding protrusions provided on an outer surface of the locking cap. The opening tool also includes a main support portion coupled to the collar, a guide supported by the main support portion, the guide including a shaft support, a pin moveably disposed within the guide and a cam lever rotatably coupled to the guide by a shaft. The shaft extending through the cam lever. The shaft being supported by a shaft support. The cam lever including a cam surface in contact with a first end of the pin. The cam surface including a first flat surface, a second flat surface and a curved surface that extends between the first flat surface and the second flat surface.