Dr. Elsey's Cat Attract
Clumping Clay
Cats avoiding the litter box
Read the tested reviewBox refusalGuide - 9 min read
Cat Stopped Using the Box After a Litter Change
Put the old litter back today. Not tomorrow, not after one more try. Every day your cat goes somewhere else, that spot gets more normal, and a habit is far harder to undo than a bag of litter is to replace.
By ReviewCatLitter Editorial TeamUpdated Aug 22, 2026
Quick answer
- 1Put the old litter back today. Every extra day makes the new spot more normal.
- 2Phone a vet the same day if there is straining, crying, blood, or repeated tiny puddles. A blocked male cat is an emergency measured in hours.
- 3Clean every accident with an enzyme cleaner made for pet urine. Anything ammonia-based marks the spot as approved.
- 4Add a second box in another room, filled with the old litter.
- 5Change nothing else for a week of clean use, then retry the new litter at a quarter strength.
Read this before the rest
A litter change is a convenient explanation, and sometimes it is the wrong one. Call a vet the same day if your cat is straining, crying in the box, going in and out repeatedly, leaving tiny puddles, or if there is any blood.
A blocked male cat is an emergency measured in hours. Nothing on this page is worth a delay.
The reset, in order
Today
Put the old litter back
Empty the box and refill it with the litter your cat was using before. Do not mix. You are trying to get one clean, boring success as fast as possible.
Today
Clean every accident properly
An enzyme cleaner made for pet urine, not a household spray. Anything ammonia-based smells like a toilet to a cat and marks the spot as approved.
Day 1 to 3
Add a second box
Different room, same old litter. Two easy options beat one perfect one while confidence is coming back.
Day 3 to 7
Change nothing else
No new box, no new location, no new cleaner, no cover. One variable at a time or you will never know what worked.
After a week of clean use
Try again at a quarter strength
Only if you still want the new litter. Go slower than last time, and stop at the first hesitation instead of the first accident.
What the behaviour people say to change
Two things come up again and again, and neither costs anything. ASPCA says most cats prefer clumping, unscented litter with a medium to fine texture, and that most cats like a shallow bed, one to two inches rather than three to four.
ASPCA adds the other half: one box per cat plus one spare, scooped at least once a day. If your household is a box short, fixing that is a bigger lever than any brand on the shelf.
Unscented clumping litters we have tested
If you need somewhere safe to land, these match the profile the behaviour advice describes: no added fragrance, and clumps that hold together when lifted. Ordered by how many clumps came through our drop test whole.
Dr. Elsey's Ultra
Clumping Clay
Dust-sensitive homes
Read the tested reviewBoxiecat Premium
Premium Clumping Clay
Lowest-maintenance scooping
Read the tested reviewNaturally Fresh Walnut
Walnut Shell
Natural clumping without corn
Read the tested reviewTuft + Paw
Soy / Tofu
Style-conscious, low-tracking setups
Read the tested reviewWorld's Best Cat Litter
Corn Litter
Eco-conscious owners who want flushable litter
Read the tested reviewCatalyst Soft Wood
Soft Wood / Pine
Cats that reject pellets
Read the tested reviewFrisco by Chewy
Budget Clumping Clay
Cheapest everyday clay
Read the tested reviewThings that look like a fix and are not
- Scented cleaner on the accident spot. It masks the smell for you and leaves the marker for your cat. Use an enzyme cleaner.
- Putting a lid on the box. A cover traps smell inside for the animal that has to sit in it.
- Moving the box somewhere quieter. Sound idea in general, terrible timing now. Change one thing at a time.
- Punishment of any kind. It teaches your cat to go where you cannot see, which is worse for both of you.
Questions people ask
My cat stopped using the litter box right after I changed brands. What now?
Put the old litter back today, then call a vet if there is any straining, blood, or repeated tiny puddles. Once a medical cause is ruled out, run a week of clean use on the old litter before you try the new one again.
How long does it take a cat to accept a new litter?
A week of gradual mixing suits most cats. A cat that has already refused once needs longer, usually two weeks of stepped mixing with an old-litter box available the whole time.
Is it the smell or the texture?
Texture, more often than not. Grain size is what your cat feels on its paws every visit. Fragrance is the other common culprit, and the ASPCA is direct about it: use unscented litter.
Should I go back permanently?
If two careful attempts fail, yes. A litter your cat will not use is not cheaper, quieter or cleaner than the one it will, whatever the reviews say.
Additive
Purrify - the additive we use in our own homes
Activated carbon you add to the litter you already buy. We have used it in our own homes for years, and with dozens of friends and family. You can keep your existing base litter.
Read our Purrify guide to picking a litter for odor control.
- Activated carbon, sold in bags
- 5.0 Google rating
- Stocked in 40+ pet stores across Canada
ReviewCatLitter editorial team
Updated Aug 22, 2026
Behaviour advice on this page is sourced to the ASPCA, linked above, and is general information rather than veterinary diagnosis. Product notes come from our own bought-and-tested reviews.