What’s actually slowing this PC down?
Pick the symptom - the matching free tool is one click away.
Mix the new litter into the familiar litter a little at a time, and let your cat’s use of the box guide the change. Cornell’s advice is gradual mixing, not a fixed day-by-day schedule; if possible, offer a second box with the new litter so your cat can choose without losing access to the familiar option.
How do I change cat litter without my cat refusing the box?
Make the litter itself the main change. Keep the box, location, cleaning routine, and other parts of the setup steady where practical; changing several things at once makes it harder to tell what your cat dislikes.
As an Amazon Associate I earn from qualifying purchases.
- Start with the familiar litter. Add a small amount of the new litter to it. Cornell University College of Veterinary Medicine recommends adding small amounts when a brand change is necessary, but does not specify a standard ratio or duration: Feline Behavior Problems: House Soiling.
- Watch what your cat does. Notice whether your cat enters the box, digs, eliminates, and covers. If the cat continues using it comfortably, increase the new litter gradually. If use declines, pause or reverse the change rather than pushing ahead.
- Offer a choice if you can. Put the new litter in a separate, roomy, accessible box while keeping the familiar litter available in another. The AAFP/ISFM guideline and ASPCA both support providing separate boxes so cats can show which litter they prefer (AAFP/ISFM, 2014; ASPCA, Litter Box Problems). A second tray is useful for testing, not a requirement for every switch.
Do not rely on a promised number of days or a precise mixing schedule: the cited guidance does not establish one. The pace should depend on your cat’s response.
Quick wins for a faster PC:
Repair Windows errors before they cause bigger problemsFix Now →Scan for outdated or missing drivers - takes under a minuteDriver Scan →Which new litter should I try?
Fine-textured, sand-like, unscented, clumping litter is a sensible starting point, not a universal winner. AAFP/ISFM describes this as a general preference profile and recommends testing different litter types and depths; ASPCA also notes that many cats prefer clumping litter with a medium-to-fine texture and no added scent. Individual cats may prefer something else, and veterinary instructions take priority.
#1 Best Overall
- FRESH STEP CLUMPING CAT LITTER: One 18.5-lb. box of Amazon exclusive Fresh Step Advanced Simply Unscented Clumping Litter to keep litter boxes smelling fresh without the use of fragrances and dyes
- 15-DAY ODOR CONTROL: Naturally strong clay enhanced with odor-fighting power, Ammonia Block Technology and activated charcoal in this Fresh Step litter help control odors for 15 days guaranteed (1)
- FORMS TIGHT CLUMPS: Tight kitty litter clumping around cat urine and waste makes scooping easy and helps prevent crumbles from being left behind in the kitty litter box
- NO ADDED DYES OR FRAGRANCES: Unscented cat clumping litter uses clay, carbon and minerals to help stop cat urine odors on contact without the use of added fragrances or dyes
- LOW-DUST FORMULA: Low-dust Fresh Step cat litter unscented formula helps keep your floors and other surfaces cleaner
Compare the old and new litter on the features your cat encounters: texture or granule size, scent, and whether it clumps. A product’s fragrance or “less tracking” claims are aimed at people, not proof of feline acceptance. As the AAFP/ISFM guideline puts it, “Cat litter is marketed to people, not to cats.”
If you need a starting depth, AAFP/ISFM’s 2014 guideline recommends at least 1.25 inches (3 cm) for the fine, unscented, clumping material it describes. ASPCA says most cats prefer 1–2 inches. These are different organizations’ general recommendations, not a single required depth; observe your cat’s preference.
Rank #2
- PREMIUM QUALITY: A combination of premium texture and granule size made with 100% bentonite clay for maximum clumping creates litter particles that are just the right size.
- LOW DUST: Ideal for cats and owners who suffer from allergies with a 99.9% dust-free and hypoallergenic litter formulation.
- HARD CLUMPING: Hard clumping medium grain clay helps prevent moisture from reaching the bottom of the tray and forms hard clumps that won't break down, making it easier to scoop.
- SUPERIOR ODOR CONTROL: Formulated for single or multi-cat households with natural ingredients to keep your home smelling clean and fresh between litter box cleanings.
- LOW TRACKING: A unique formulation of medium grain clay helps keep litter in the box where it belongs.
What else can make a cat avoid the box?
A litter change is only one possible cause of avoidance. Box cleanliness, size, entry height, location, stress, conflict with other cats, pain, and illness can all affect whether a cat uses the box. When comparing trays, consider usable space, ease of entry, and location as well as the litter itself.
Recommended Free Tools
AAFP/ISFM’s 2014 guideline recommends a box about 1.5 times the cat’s length, measured from nose to the base of the tail. It also reports that adult cats in one study preferred a 34 × 15-inch (86 × 39-cm) box over a smaller one; that study result is not a universal minimum.
Rank #3
- FRESH STEP CLUMPING CAT LITTER: Amazon exclusive, two 18.5-lb. boxes of Fresh Step Advanced Simply Unscented Clumping Litter to keep litter boxes smelling fresh without the use of fragrances and dyes
- 15-DAY ODOR CONTROL: Naturally strong clay enhanced with odor-fighting power, Ammonia Block Technology and activated charcoal in this Fresh Step litter help control odors for 15 days guaranteed (1)
- FORMS TIGHT CLUMPS: Tight kitty litter clumping around cat urine and waste makes scooping easy and helps prevent crumbles from being left behind in the kitty litter box
- NO ADDED DYES OR FRAGRANCES: Unscented cat clumping litter uses clay, carbon and minerals to help stop cat urine odors on contact without the use of added fragrances or dyes
- LOW-DUST FORMULA: Low-dust Fresh Step cat litter unscented formula helps keep your floors and other surfaces cleaner
Keep the box clean during the trial. AAFP/ISFM recommends removing waste at least once daily and washing the box every 1–4 weeks with soap and hot water, while avoiding strong chemicals and ammonia-based products. ASPCA also advises scooping at least daily. A dirty box can muddy a litter comparison, so do not let cleaning routines change at the same time if you can avoid it.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What should I do if my cat stops using the litter box?
Pause the switch and restore the last setup your cat reliably accepted. Then consider whether the litter’s texture or scent, the tray’s size or access, its location, cleanliness, or a household change could be contributing. Clean accident spots with an enzymatic pet-odor cleaner; ASPCA advises against ammonia-based cleaners. Do not scold your cat or force them into the box.
Rank #4
- LONG-LASTING ODOR CONTROL: Unscented cat litter with activated charcoal and clay provides long-lasting litter box odor control
- FRAGRANCE-FREE FORMULA: Made of natural clay that is free of fragrances and dyes
- EASY LITTER BOX CLEANING: Strong, tight forming clumps ensure cat litter box easy cleaning
- LOW DUST POURING: Low dust cat litter for mess-free pouring and minimal spills
- MULTI-CAT ODOR PROTECTION: Effective for single or multiple cat litter box odor protection
Arrange a veterinary exam for new house-soiling or a change in elimination, especially if your cat strains, makes frequent unsuccessful attempts, passes only small amounts, has blood in the urine, cries, or seems unwell. These signs can point to a medical problem rather than a litter preference. If your cat cannot pass urine, seek urgent veterinary care: urinary blockage can be life-threatening. See AAHA’s guidance on litter-box avoidance (updated February 6, 2026).
Free tools Windows power users keep installed
One-click scans. No signup required.
Quick Recap
Best Value
- POWERFUL ODOR CONTROL: Unscented clumping cat litter box odor control formula made without fragrances or dyes provides guaranteed 10-day odor control when used as directed
- ACTIVATED CHARCOAL FORMULA: Purina Tidy Cats clumping unscented cat litter for multi-cat households offers uncompromising odor control with activated charcoal that absorbs odors
- LOW DUST EASY POUR: Low dust multi-cat litter formula now in a smaller, easy-pour bag
- STRONG TIGHT CLUMPS: Unscented clumping natural clay litter forms strong, tight clumps for easy scooping and is part of the complete line of Purina Tidy Cats litter solutions
- VETERINARIAN TRUSTED: Purina Tidy Cats litter is the most often trusted and personally used brand by veterinarians
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
