Instructions: Fill your clean litter box with 2â3 inches of Fresh Step litter. Additional FreshStep litter is recommended if the litter box is used by more than one cat. This is a No Clump, Just Dump litter. Empty the entire litter box as needed, usually about once a week. Dispose of used litter in trash. Remove solid waste daily and dispose of in the trash. Sprinkle additional Fresh Step litter in the litter box each time you remove solid waste to help keep the litter box fresh. Do not flush down the toilet or drain.