Get

In Your Inbox

Catster is reader-supported. When you buy via links on our site, we may earn an affiliate commission at no cost to you. Learn more.

How Often to Change Your Cat’s Water? Vet-Approved Care Tips

cat and orange bowl inside the house

We all know that cats need fresh water daily, but if you have a larger bowl that they don’t empty each day, how often do you need to change it out? The truth is that you need to give your cat fresh water every day, and if they don’t drink it all, you need to dump it out, clean the bowl, and then give them fresh water again.

But why do you need to swap out the water every day, and what can happen if you don’t?

divider 3 paws

How Often Should You Clean Your Cat’s Water and Food Bowls?

While you might not think much about your cat’s food and water bowls, that doesn’t keep bacteria from forming on them. Just like you don’t want to use a dirty bowl or cup for your meals, you shouldn’t expect your cat to use one either.

Because of this, you should clean their food and water bowls every single day. It might seem a little excessive, but there’s a reason you wash your dishes after each use, and your cat deserves the same thing!

Kitten drinking from a water bowl
Image Credit: PicksArt, Shutterstock

How Much Water Should Your Cat Drink?

The amount of water a cat drinks out of a traditional water bowl depends on the size of your cat and the type of cat food you feed them. If you feed your cat wet cat food, it contains 70 to 80% moisture, meaning it can give your cat a lot of the fluids that they need.

Overall, your cat needs about 4 ounces for every 5 pounds of body weight, meaning a 10-pound cat needs 8 ounces of water each day. But since your cat can get their water from their food or their water bowl, sometimes it can be hard to measure just how much water they’re getting.

Cats can be very particular about many things, including the water they drink. The right water fountain can provide your cat with clean, fresh water.

Hepper Stainless Steel Cat Water Fountain
  • Premium 304-Grade Stainless Steel - This metal cat water fountain is hygienic, with superior...
  • Serene & Healthy Cat Drinking Fountain Experience - With whisper-quiet pumping & an advanced...
  • Say Goodbye to Dehydration - Provide your cat with a constant source of flowing water with this...

We recommend Hepper's Stainless Steel Cat Water Fountain, an easy-to-clean model with three different flow modes, a large capacity, and effective triple filtration. This minimalist fountain runs quietly and will fit right into your home.

At Catster, we’ve admired Hepper for many years and decided to take a controlling ownership interest so that we could benefit from the outstanding designs of this cool cat company!

What Could Happen if You Don’t Change/Clean the Bowl Enough?

You need to take the time to clean your cat’s water bowl daily, and the reason for this all comes down to the inevitable contamination with food particles, dust and bacteria. If you’re not cleaning the bowl enough, your cat may become unwell from drinking water contaminated with bacteria.

Cats are also very fussy about the water they drink. If the water smells or tastes funky because it is not clean and fresh, they may drink less or not drink it at all. Not drinking enough water can also cause problems, for example putting cats at an increased risk of urinary tract issues.

How Often Should You Clean a Cat Water Fountain?

While you need to clean a traditional cat water bowl each day, if you have a fancier cat water fountain-style bowl, you likely don’t need to clean it quite as often as the water is moving and they generally contain filters. However, you still need to follow the manufacturer’s guidelines and on average clean it and replace the water at least once a week, but often every 3 to 4 days, even if the water in the bowl lasts longer than that.

These fountain-style bowls don’t collect bacteria as quickly as traditional bowls, but they don’t stay clean forever. When cleaning the bowl, dump out any water that’s still in the bowl and give them fresh water to prevent bacterial buildup. Be sure to follow guidance on how often to change and replace filters as well, which is usually every 4 weeks.

divider 3 paws

In Conclusion

Now that you know a little more about how often you should change your cat’s water bowl and why it’s so important, all that’s left is for you to take the time to clean it. It can be a pain to adjust to at first if you don’t normally clean them that often, but once you get into a rhythm, it only takes a few minutes each day, and it goes a long way in keeping your cat healthy and safe!

Related Reads:


Featured Image Credit: New Africa, Shutterstock

How useful was this post?

Click on a star to rate (you can leave written feedback after clicking submit)

Help us improve Catster for pet parents!

Your feedback really matters.

What did you like about this post? Also how can we improve it?

Join the conversation

Leave a Reply

You’re very welcome to leave a comment or question. Please know that all comments must meet our community guidelines, and your email address will NOT be published. Let’s have a positive and constructive conversation.

Talk With A Vet Online

Peace of mind,
anywhere, anytime

Affordable vet advice

How Much Water Does a Kitten Need Per Day? Vet-Approved Facts & Tips

If you’re a new kitten owner, you may not know that many cats drink too little water to keep themselves properly hydrated. So,...

kitten drinking water from the water bowl

How Much Water Does a Cat Need per Day? Vet-Approved Facts & Health Tips

Like humans, cats require access to fresh drinking water, which is essential for proper body functioning and optimum health. Water helps cats maintain...

cat dipping its paw in water bowl

How To Stop a Cat From Putting Their Paws In Their Water: 3 Tips & Tricks

Cats are often considered incredibly water averse, which probably brings a smile to any cat companion who’s watched their buddy become mesmerized by...

cat dipping its paw in water bowl

Why Does My Cat’s Water Bowl Get Slimy? 3 Likely Reasons

The dog’s water bowl may be one of the dirtiest items in the house, but a cat’s water bowl can get pretty disgusting,...

tabby cat sitting next to a bowl of water

More related

Cat tested, Zelda approved.

Zelda Likes Her Water Shaken, Not Stirred (with Video)

Hi, I’m Dr. Karyn! Read my introduction to learn more about me and meet my five hilarious cats: Clutch, Cyril, Alex, Zelda, and...

Can Cats Drink Coconut Water? Vet-Verified Nutrition Facts & FAQ

Coconut water is the clear liquid that is found inside young coconuts. It is packed with electrolytes and is known to offer benefits...

white cat with the owner

How to Keep Cats Healthy: 10 Vet-Approved Tips to Boost Your Cat’s Mental & Physical Health

Cats are family members, and it makes sense for pet parents to do everything possible to ensure their companions get whatever they need...

cat stretching a rocky beach and a beautiful sunset over the ocean

Can a Cat Overheat? Vet Approved Signs & How to Help Them

Due to their desert-dwelling ancestors, cats are often believed to not be affected by hot weather. While their normal body temperature is higher...

Keep reading

How to Care for Your Cat After Spaying or Neutering: 12 Vet-Approved Tips

If you’re bringing home a kitten, spaying or neutering is probably on your to-do list. Spaying is a procedure that prevents female cats from becoming pregnant, while neutering removes a male cat’s testes. Both spaying and neutering have many benefits—they...

hand comforting a scottish fold cat after surgery

Can Cats Eat Hay? Vet-Reviewed Nutrition Facts

While cats are often notoriously picky about cat food, they do seem to like nibbling on various plants and human foods. If you have hay lying around the house, don’t be surprised if your cat takes a bite or two....

Can Cats Eat Hay

Can Cats Be Trained Like Dogs? Vet-Approved Tips & Tricks

Cats are independent creatures that like to do things on their own terms. However, they are also highly intelligent and can learn to do many things that we want to teach them. But can cats be trained like dogs can?...

young woman training cat in the kitchen

Will Cat Fur Grow Back Over Scar Tissue? Vet Reviewed Facts & FAQs

If your cat has recently gotten injured or had surgery, you may wonder whether their fur will grow back in the injured area after it heals. The answer is that in some cases, cat fur can grow back over scar...

stray cat with scars

When Can Kittens Eat Solid Food? Vet-Approved Facts & FAQ

Adopting a kitten is a wholesome moment, but it comes with many responsibilities. While their sleeping requirements are usually easier to manage, their nutritional needs require extra effort and care. Considering how fast felines grow, you must act fast to...

When Can Kittens Eat Solid Food

Mobile Vet Clinics & Care: Our Vet Discusses Pros, Cons & FAQ

Your cat is wonderful at home but turns into some sort of Tasmanian devil the moment she gets to your veterinarian’s office. Is there an easier way to get her preventative care done so that you know she’s healthy? Let...

vet holding a cat

Does Lysol Kill Fleas on Cats? Vet-Verified Facts & Safety Guide

Fleas endanger our pets and homes beyond the bites and unpleasant stigma attached to infestations. They are also hosts to other parasites, such as tapeworms, which can hatch inside your cat’s intestine if ingested. In some cats, flea bites can...

Lysol cleaning product

Can Cats Eat Pesto? Vet-Approved Risks & Safe Alternatives

Pesto is a household staple used in various foods, such as salad dressing, pizza, and chicken—the possibilities are limitless! If you’re a cat owner, you may have noticed your feline nosing around when you bust out this sauce, but is...

Can Cats Eat Pesto