How do I dispose of cat litter?

Bagged, in household waste, unless your local rules say otherwise — several plant litters are described as flushable and water authorities frequently advise against flushing cat waste at all.

Rules are local, and the manufacturer’s claim is not the last word.

The default

Bagged and binned. A sealing disposal bin keeps it tolerable indoors between collections.

Flushable claims

Tofu and some plant litters are sold as flushable. Local water authorities frequently advise against flushing any cat waste, and a blocked drain costs far more than a year of litter.

Composting

Not for cat waste in a domestic compost heap. Garden waste rules vary and this is one place to follow them rather than improvise.

Volume

Clumping clay is heavy and fills a bin fast. Plant litters weigh far less for the same duration, which matters if you carry bags downstairs.