A waste container is received in a photographic processing machine along with a chemical supply container. The supply container is oriented at an angle to horizontal. Ports are provided into the containers with an associated snap cap oriented such that the neck extends vertically when received in the processing machine. A shipping cassette system includes two stacked upper and lower cassettes, each having a plurality of vertical walls that laterally surround an interior volume. A processing machine includes a cap opening bar and a mounting mechanism with a pivot point aligning the bar with the caps of a chemical delivery container assembly along a side of the caps opposite to the side along which the hinges are aligned such that rotation of the cap opening bar about the pivot point simultaneously opens the fluid supply ports by rotating the caps about their hinges.