The short answer
Empty the bin on roughly the maker's stated days ÷ your number of cats: a bin rated up to 14 days for one cat needs emptying about weekly with two. Top up litter as it drops, and deep-clean the drum or bed about monthly, following the manual.
Bin schedules
| Box | Maker figure |
|---|---|
| PETKIT Purobot Max Pro 2 | Up to 17 days |
| PETKIT PuraMax 2 | Up to 15 days |
| CATLINK Open-X | Up to 15 days |
| PETLIBRO Luma | Up to 14 days |
| Neakasa M1 Plus | 7–14 days |
| WARCAT 90L | Up to 10 days |
Deep cleaning
- Unplug before cleaning.
- Remove the drum or bed where the design allows; Meowant and UPFAS drums wash with water.
- Dry fully before refilling litter.
Consumables
Replace pads, filters and deodorizers on their own schedules. PETLIBRO says its Luma pad lasts up to three months.
Products mentioned
Questions readers ask
How often do I empty a self-cleaning box?
Roughly the stated days divided by your number of cats.
Can I wash the drum?
Many are washable; follow the manual and dry fully.