[Sever]

If i recall correctly, the hints are first displayed when you first enter the room and every time after that until you go and chat with quallo. After that, the option to read the hints is gone. Instead, when clicking on the pipes, it performs the function of placing the items within.

This had me stuffed the first time as i had forgotten the hints and had to resort to a bit of trial and error. Nothing a well timed quick-save can't resolve.