1. Press in the logo button and swivel open the lid. At 90 degrees remove the lid from the base.  
  2. Remove the parts from inside the base.
  3. Insert liner (it may already be in inserted) and fill with 3-4 inches of litter (50-60mm). Transfer one scoop of used litter from your old box.
  4. Insert the lid at 90 degrees and swivel closed. Make sure the button engages and clicks shut.
  5. Hang the scoop in the notches on either side or anywhere on the top edge. Remove scoop before opening lid.
  6. Position Modkat in a quiet spot with the logo button facing front and entry hole towards the wall.