Pour the entire contents of the PrettyLitter bag into a clean litter box. Make sure you are getting the proper 2" of depth. Remove your cat's feces every day. When you scoop the feces, make sure to shake off the extra litter granules. Thoroughly mix the litter every day to avoid saturating the same spots in the litter box that cats prefer to urinate in. After a month's use, empty the entire litter box's contents in to a trash bag. If there is any residue on the bottom of the litter box, clean the litter surface before pouring in your new supply of PrettyLitter. Regularly check the color of the litter. Shades of yellow to olive green are an indication of normal health. If you notice any other colors, thoroughly mix the litter and monitor your cat's PrettyLitter closely over the next 24 to 48 hours. If color change persists, you should consider consulting your Veterinarian.