Fresh Step?? litter directions for use: 1. Fill your clean litter box with 2-3 inches of Fresh Step?? litter. Additional Fresh Step?? litter is recommended if the litter box is used by more than one cat. 2. Empty the entire litter box as needed, usually about once a week. Dispose in trash. Remove solid waste between complete litter box changes. 3. Sprinkling additional Fresh Step?? litter in the litter box each time you remove solid waste will help keep the litter box fresh. Dispose of solid waste and used litter in the trash. Do not flush down the toilet or drain.