How often do the Washable Granules need changing or replacement?
Actually, the Washable Granules never need changing or replacement as they are washed, scrubbed, and sanitized at least once a day. However, you will need to add Granules because some will be lost as they may stick to solids or get kicked out of the Basin. Just keep the Basin filled to the safe-level line for optimum performance and for your cat’s comfort.
