The Fuji machines might not have had this option, but the Kodak machines I worked with could all be filled with the wrong chemicals. This was fine if you filled

The Fuji machines might not have had this option, but the Kodak machines I worked with could all be filled with the wrong chemicals. This was fine if you filled once a day and did all of the daily tests: it wasn't so wonderful when they switched to fill-as-needed or if a new person got mixed up. It didn't really improve when the place I worked upgraded their machines: The chemicals mixed differently, but you could still mess up developing film. The digital film scanning was pretty nice, though.