Most cats take to a litter box instinctively — they’re hardwired to eliminate in a loose, diggable surface and cover it up. If your cat isn’t using the litter box reliably, the problem is almost always the setup, the location, or an underlying health issue — not the cat being difficult.
Choosing the Right Litter Box
Size
The box should be at least 1.5 times the length of your cat (nose to base of tail). Most commercial litter boxes sold in South Africa are too small for adult cats. A clear storage container (60cm x 40cm) with one side cut down for entry works better than many purpose-built trays.
Open vs Covered
Covered boxes appeal to humans (less visible, contained odour) but many cats dislike them. The enclosed space traps odours inside — and a cat’s sense of smell is 14 times stronger than yours. If your cat avoids a covered box, try removing the lid before assuming there’s a behavioural problem.
How Many?
The golden rule: one box per cat, plus one extra. Two cats need three boxes. This isn’t excessive — it prevents territorial blocking (where one cat guards access) and gives each cat options. For more on multi-cat dynamics, see our guide to stopping cats fighting.
Choosing the Right Litter
Types Available in South Africa
- Clumping clay: The most popular type. Forms solid clumps around urine for easy scooping. Cats generally prefer the fine, sandy texture.
- Non-clumping clay: Cheaper but needs full replacement more frequently. Absorbs urine but doesn’t clump.
- Crystal/silica gel: Highly absorbent, low dust, less frequent changing. Some cats dislike the texture under their paws.
- Wood pellets: Eco-friendly and good at odour control. The texture is different from sand, so some cats need an adjustment period.
- Paper-based: Soft, dust-free, and suitable for cats recovering from surgery (won’t irritate wounds). Low odour control.
Depth
Fill the box to a depth of 5–7cm. Too shallow and the cat can’t dig and cover properly. Too deep and it feels unstable underfoot.
Scented vs Unscented
Always use unscented litter. Scented litter masks odours for humans but can be overwhelming and off-putting for cats. If odour is a problem, scoop more frequently rather than adding fragrance.
Location Matters
Where you put the litter box is as important as the box itself:
- Quiet and accessible: Not next to the washing machine, not in a busy hallway, not behind a door that could close and trap the cat.
- Away from food and water: Cats instinctively avoid eliminating near where they eat. Place food and litter in separate areas.
- One per floor: If you have a multi-storey home, each level needs a litter box. A cat won’t trek downstairs at 2am.
- Easy escape: Avoid dead-end locations. A cat cornered while using the box (by another pet or a toddler) may develop litter box avoidance.
Troubleshooting Common Problems
Cat Suddenly Stops Using the Litter Box
The number one cause is a medical issue — urinary tract infection, kidney problems, or digestive illness. A vet visit should always be the first step. If health is ruled out, consider:
- Has the litter brand or type changed recently?
- Has the box been moved?
- Is it being scooped frequently enough? (Daily is minimum)
- Is another pet (or child) harassing the cat at the box?
Cat Uses the Box for One Function but Not the Other
Some cats urinate in the box but defecate elsewhere (or vice versa). This often means one box isn’t enough — some cats prefer separate boxes for each function. Add a second box in a different location.
Cat Eliminates Right Next to the Box
This usually means the cat wants to use the box but something about it is wrong — too dirty, wrong litter, too small, or an aversive association (if they experienced pain while using it during an illness).
Spraying vs Inappropriate Elimination
Spraying (urine marking on vertical surfaces) is territorial behaviour, not a litter box problem. It’s most common in unneutered males but can occur in any cat during stress. Neutering resolves most spraying in males; for persistent cases, consult a vet about pheromone therapy or behavioural intervention.
Maintaining the Litter Box
- Scoop daily — minimum. Twice daily for multi-cat households.
- Full litter change: Every 2–4 weeks for clumping litter, weekly for non-clumping.
- Wash the box: Monthly with warm water and mild soap. Avoid bleach or strong chemicals — the residual smell can deter cats.
- Replace the box: Annually. Plastic absorbs odours over time, and scratches harbour bacteria that cleaning can’t fully remove.
A clean, well-placed, appropriately sized litter box solves most problems before they start. For kittens just learning, see our step-by-step kitten litter training guide, and for choosing the right setup, read our litter box selection guide.
