Blog
Buying decisions, running costs and what these machines are actually like to live with — the questions that come before, and after, something breaks.
28 articles published.
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Choosing a machine · 6 min read
Robot vacuum for cat litter: what actually works
Litter scattered around the box? What a robot vacuum needs to pick it up, why bin size and the dock matter, and the accident risk owners rarely mention.
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Living with one · 6 min read
How to get cat urine out of carpet, for good
Cat pee smell keeps coming back? Why vinegar and steam make it worse, how to use an enzyme cleaner properly, and where a portable carpet cleaner helps.
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Choosing a machine · 6 min read
Air purifier for litter box smell: what actually works
Will an air purifier stop litter box smell? Why HEPA alone won't, how much carbon you need, where to put it, and three purifiers for small to large rooms.
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Choosing a machine · 9 min read
Self-cleaning litter box for a senior cat: what matters
Choosing a self-cleaning litter box for a senior cat? Compare step heights and weight limits, see which models help older cats, and what the apps can track.
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Choosing a machine · 8 min read
Pet door for a sliding glass door: insert panel or glass cut?
Choosing a pet door for a sliding glass door? Compare patio panel inserts and through-glass doors, learn how to measure the track, and keep the door secure.
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Choosing a machine · 9 min read
Microchip cat feeder: stop one cat eating the other's food
One cat eating the other's food, or a diet only one should get? How a microchip cat feeder works, where it fails, and how to set it up in a multi-cat home.
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Living with one · 6 min read
How to keep a dog's water from freezing outside
Dog's water freezing outside? Heated bowls compared by size and watts, what works without power, and the outlet and cord rules for a bowl plugged in all winter.
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Living with one · 10 min read
Heated outdoor cat house: what actually keeps a cat warm
Heated outdoor cat house or straw-filled shelter? What warms an outdoor cat in winter, how heated pads work, where to put the shelter, and what to avoid.
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Living with one · 8 min read
Heated dog bed or dog house heater: what's actually safe
Heated dog bed, heated pad or dog house heater? How each works, the wattage and safety listing to check, and the outlet and cord rules that prevent accidents.
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Choosing a machine · 8 min read
Dog ramp vs dog stairs: which one for the bed or couch?
Dog ramp or dog stairs for the bed or couch? How to choose by size, age and space, plus a table of the ramp length you need for your bed height and angle.
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Choosing a machine · 8 min read
Self-cleaning litter boxes under $200: what you give up
Looking for a self-cleaning litter box under $200? What this budget really buys, the hidden cost of crystal trays, and which cheap designs to avoid for safety.
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Living with one · 13 min read
Dog or cat door letting cold air in? How to seal it for winter
Cold air coming through your dog or cat door? Find where it gets in (flap, frame or patio insert) and seal it for winter, from a new flap to a better door.
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Costs & upkeep · 9 min read
Litter-Robot 3 repair costs: fix it, or move to a 4?
Every Litter-Robot 3 part Whisker still sells, with its listed price, and the point where the repair bill stops being cheaper than a Litter-Robot 4.
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Living with one · 6 min read
Why won't my smart pet device connect to WiFi?
Your router isn't broken and neither is the device — plenty of pet-tech gadgets only speak 2.4GHz WiFi, and modern routers are good at hiding it.
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Choosing a machine · 7 min read
PETLIBRO Luma vs Litter-Robot vs PETKIT Pura Max 2: which to buy?
A camera, a proven track record, or the lowest price — the PETLIBRO Luma, Litter-Robot 4, and PETKIT Pura Max 2 each win on one. Here's the honest breakdown.
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Choosing a machine · 9 min read
Litter-Robot vs PETKIT Pura Max 2: is the price gap worth it?
The PETKIT Pura Max 2 runs $200 to $300 under a Litter-Robot 4 depending on retailer — what that gap buys, and the one measurement PETKIT never publishes.
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Costs & upkeep · 7 min read
Litter-Robot 4 warranty ending? Check these 6 things first
Your Litter-Robot 4 warranty won't last forever. Here's what to check in the last month — plus whether WhiskerCare's $100 extension is worth it.
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Choosing a machine · 6 min read
Litter-Robot 4 dimensions: will it actually fit your home?
The Litter-Robot 4 is bigger than it looks in photos, and it can never touch a wall. Here's every official measurement and the space it really needs.
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Choosing a machine · 8 min read
Litter-Robot 3 vs 4: is the upgrade actually worth it?
Whisker has discontinued the Litter-Robot 3, so this is now a repair-or-replace call. Here's what the 4 actually adds, and when a $48 motor keeps the 3 you own.
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Choosing a machine · 13 min read
Is the PETLIBRO Luma worth it?
The PETLIBRO Luma prices below a Litter-Robot 4 and adds a built-in AI camera most rivals lack — what that buys you, and what to check before buying.
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Choosing a machine · 10 min read
Best self-cleaning litter boxes under $700, compared
Roughly two dozen app-connected litter boxes sit under $700 — we compare three by the spec sheet (Litter-Robot 4, EVO, PETKIT Pura Max 2) plus alternatives.
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Living with one · 11 min read
Why does my Litter-Robot still smell after cleaning?
A Litter-Robot that still smells usually has one specific cause, not a dozen — worn seal strips, trapped urine, an overdue filter. Here's how to tell which.
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Costs & upkeep · 11 min read
What a PETKIT Pura Max actually costs to own each year
The PETKIT Pura Max's price tag is only part of the story — recurring refills, a conditional warranty, and real owner complaints all factor into what it costs.
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Choosing a machine · 8 min read
Litter-Robot 4 vs 5 vs EVO: which one should you buy?
The Litter-Robot EVO, 4, and 5 differ in size, sensors, and cat capacity, not just price — here's which one actually fits your cats and your budget.
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Living with one · 8 min read
The Litter-Robot 4 cleaning calendar, at a glance
There's no shortage of Litter-Robot 4 cleaning steps online — what's missing is when to do each one. Here's a simple daily-to-quarterly calendar.
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Costs & upkeep · 12 min read
Is the Litter-Robot 5 worth it?
The Litter-Robot 5 costs more than the 4, and the Pro tier costs more still — here's what that price gap actually buys, and what it costs to own long-term.
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Living with one · 11 min read
How to get rid of phorid flies in your litter box
Small, dark flies running erratically near your litter box are phorid flies, not fruit flies. Here's why they breed there, and the fix that actually stops them.
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Living with one · 12 min read
Best Litter for Litter-Robot 4 (2026): Whisker-Approved List
The best litter for a Litter-Robot 4 is a clumping clay like GreatLitter, Tidy Cats for Litter-Robot or Dr. Elsey's. See the approved list and what jams it.
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