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You Changed It Yesterday. That Was 24 Hours Ago.

Think about when you last emptied your cat’s fountain—not just topped it up. If it’s been 24 hours, it’s time to change the water. A peer-reviewed study in Veterinary World found faecal coliforms in 67.27% of samples after 24 hours.
★★★★★  4.8 · 299 reviews on hapaw.com
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#1. NSF had 22 households rank the germiest things in their home. The pet bowl came eighth.

Swabbed, it measured fourth — about 1.5 million germs per 10cm², ahead of the coffee reservoir, the bathroom tap and the kitchen counter. You put fresh water in every day, which is probably why it never lands on your own list.

#2. Emptying it more often shortens the clock. It does not stop it starting.

In an ordinary fountain the bowl and the tank are one body of water — saliva, hair and food go straight back into all of it. A filter catches the particles on the way past — it does not take the old water out and put new water in. You can reset the clock; your cat restarts it on the first drink.

#3. Two tanks. Used water never goes back up.

3 L of clean water feeds the bowl and moves one way only. What your cat has drunk from drains into a separate 1.35 L tank — on a schedule that runs without you, and the bowl refills from the clean side. You can also trigger it with the button or from the app.
$111.99 $189.99 41% OFF
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#4. Out in seconds. Back in three moves.

The tray and both tanks come away whole and rinse under a tap. Putting it back is fill the tank, set the unit on top, drop the tray in — nothing clips and nothing screws.

#5. Cordless. Nothing across the floor to trip over or chew.

A 5000 mAh charge runs 20+ days in sensor mode, so it can sit anywhere in the house instead of next to a socket. The 3 L tank lasts 7 to 14 days depending on your cat, and the used water still drains itself while you are away.

*Bonus Reason*

🛡1+1 Year
Warranty
30-Day
Money-Back
Guarantee
Set it and forget it. Then run a finger round the inside. If it slips, send it back. 30 days, full refund, no questions. Plus a second warranty year free when you register.

What Buyers Keep Saying

Buyer photo

The water keeps moving, and my cat seems to enjoy drinking from it.It’s pretty easy to clean, doesn’t take up too much space, and looks nice in my kitchen.

AnneAnne Verified Purchase
Buyer photo

The water stays looking fresh and clean, which is especially important to me for my cats. It’s easy to use, easy to clean, and my cats took to it right away. Definitely one of the most useful pet products I’ve tried. Highly recommend!

Kristi G.Kristi G. Verified Purchase
Buyer photo

I thought it would take her time to adjust but she jumped right into drinking from it! Battery lasted up to 20 days on mode 2. Loved that it’s censored to movement in this mode. water fountain turns on when she walks up to it.

Sue L.Sue L. Verified Purchase
HAPAW Smart Cat Water Fountain
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HAPAW Smart Cat Water Fountain

$111.99 $189.99
2026 Fall SaleExtra 10% comes off in cartYou pay $100.79
Color:White
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Frequently Asked Questions

A normal fountain runs one tank and pumps the same water back up. This one keeps clean and used water in separate tanks, so what your cat has already drunk from never returns to the bowl.

No traditional filter is needed. The sponge and panel only catch hair and debris — they are not filtering the water, because used water is never recirculated. The sponge is reusable; rinse it periodically. Four spares are included.

The app tells you when it is full, and you can set drainage to run automatically or trigger it manually. For most single-cat homes this is a weekly job.

Yes. There is a version without app control, and the app version runs normally on its own — the app adds monitoring, alerts and drainage scheduling.

A 5000 mAh battery takes over, with more than 20 days of runtime. Plugged in, it charges automatically, so moving it or cleaning it does not interrupt anything.

It runs at about 20 dB. Sensor mode keeps it off until your cat approaches, so it is not running all night.

304 stainless steel. Plastic bowls are harder to keep clean; steel wipes down and does not hold a film the same way.

The spout, the steel tray and both tanks lift out and rinse under a tap. The motor unit is not washable — wipe it with a damp cloth. The black sponge that keeps the water line clear rinses too, and spares come in the box.

Every order comes with a 30-day free trial. Registration adds a second year of warranty on top of the standard one.

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