Directions for use Provide a litter tray large enough for your cat to use comfortably. Fill the litter tray with Bestpets cat litter to a depth of approximately 1cm. Woodbased cat litter expands when wet so do not over fill the litter tray. Inspect the tray daily and using a scoop remove solids as necessary. Dispose of with the appropriate household waste. At regular intervals the tray should be emptied completely and washed out with a mild detergent. Dry the tray thoroughly before filling with fresh Bestpets cat litter.