Consult with relevant municipal authorities on flushing restrictions. The State of California encourages the disposal of cat feces in trash and discourages flushing feces in toilets or disposing of them in drains. Directions: 1. Pour to a depth of 3–4 inches. 2. Remove solids waste daily and dispose in trash. Add more litter as needed to maintain a depth of 3–4 inches. 3. At least once a month, clean the litter box with mild detergent and water between litter changes.