To mark a room "Clean" or "Dirty" from the Tape Chart, first look on on the left hand side of the page at the room numbers listed with the room type in parentheses.
If the cell is yellow, then the room is dirty, if it is blue it is clean.
Rooms can also be marked clean or dirty in the Housekeeping Section
To change the status, follow these steps.
Note: If you try to check in a guest to a dirty room, you will get this message. You will be given the option to proceed or mark the room clean first.