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 Should You Change the Water in a Cat Water Fountain? Vet-Verified Facts & Care Tips

Hepper Water Fountain - Himalayan Persian White

If you struggle to get your kitty to drink water, you may have purchased a cat water fountain to encourage them to stay hydrated. The constantly running water may be more appealing to your cat than a bowl of water. While the movement helps the water stay fresher, you should still change the water in your cat’s fountain at least once a week based on the manufacturer’s recommendation. However, you should change it more frequently if you have multiple cats.

In this article, we’ll cover how to know when to change the water in your cat’s fountain and the other steps you should take to keep it clean and sanitary. We’ll also discuss other strategies to encourage your cat to drink more and why keeping your pet hydrated is vital.

divider cats oct 2024

How to Decide How Often to Change the Water in Your Cat’s Fountain

Several factors help determine how often you should change your cat’s water in a fountain.

First, how many cats are using the fountain? The more cats that drink from the fountain, the faster the water disappears and the quicker it gets dirty with debris. If you have multiple cats, you may need to change the water as often as every 2–3 days.

You should also consider the manufacturer’s recommendation for the water fountain. Cat water fountains usually come with filters that keep the water clean, but they all work a bit differently. Read the directions for your fountain to find out how often the company recommends the water be changed.

Finally, examine the water in the fountain. Does it look cloudy, dirty, or slimy? If so, go ahead and change it.

cat water fountain
Image Credit: Creative Cat Studio, Shutterstock

How to Keep Your Cat’s Water Fountain Clean

Any vessel that holds water will eventually develop slime and mold if not cleaned regularly. To prevent this problem in your cat’s water fountain, clean it thoroughly at least once a week. Follow the manufacturer’s recommendation for cleaning based on the type of water fountain you have.

Some parts of your water fountain may be dishwasher safe, while others will need to be hand-washed. When you clean the fountain, replace the water completely. If your water fountain has a filter, change it according to the recommended schedule, usually every 2-4 weeks.

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!

Why Is It Important for Your Cat to Drink Water?

Cats will drink different amounts of water depending on what they are fed as well as their size, activity levels, and health. Wet food contains 70-80% water, so if your cat regularly eats wet food they will need to drink less water.

Cats need to stay hydrated and just like us, they can get dehydrated if their water intake is not enough for the fluids they are losing. This can be if they are unwell and not eating and drinking as much, or it can be caused by illness and increased loss of fluids like vomiting or diarrhea. The signs of dehydration will vary depending on the severity but can include:

  • Dry gums
  • Decreased skin elasticity
  • Sunken eyes
  • Weakness
  • Constipation

If you are concerned your cat is not drinking enough or they are showing signs of being dehydrated or unwell then contact your veterinarian.

If you need to speak with a vet but can't get to one, head over to PangoVet. It's an online service where you can talk to a vet online and get the advice you need for your pet — all at an affordable price!

PangoVet_Mention-in-Content for PangoVet2 save money

Other Tips to Encourage Your Cat to Stay Hydrated

Not all cats enjoy drinking out of a water fountain. Some dislike the noise or find the process strange and unfamiliar. To help these cats stay hydrated, you’ll need to try different strategies.

First, you can experiment with different types and locations for your cat’s water bowls.

Try glass, ceramic, or metal bowls in various sizes and shapes, plastic bowls can taint the water. Place multiple water bowls around the house at various heights, including on counters, tables, and the floor. Cats prefer not to drink water that is near their food or toileting area. Change the water in the bowls daily and keep them clean to prevent slime buildup.

You can add a few drops of tuna juice or unsalted chicken broth to your cat’s water on occasion to encourage water intake.

Another option is adding canned food to your cat’s diet or switching from kibble completely.

divider cats oct 2024

Conclusion

Depending on how many cats you have and the specific recommendations for your cat water fountain, you should expect to change the water every 2–7 days. Cats usually don’t like drinking dirty water, so there’s not much point in switching to a water fountain if you let the water get dirty.

If your cat suffers from health issues like diabetes or urinary tract disease, they must drink plenty of water. Talk to your vet about monitoring your cat’s water intake and additional strategies to ensure they stay hydrated.

Related Reads:

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

We all know that cats need fresh water daily, but if you have a larger bowl that they don’t empty each day, how...

cat and orange bowl inside the house

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

More related

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...

cat pooping in a yellow litter box

My Cat Purses Their Lips When They Poop, What’s Going On? Vet-Verified Reasons (With Infographics)

Cats express how they’re feeling in subtle ways, which can be difficult for humans to pick up on. Sorting out signs of illness...

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...

tabby cat sitting next to a bowl of water

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,...

Keep reading

9 Best Cat Shampoos for Dandruff in 2025 – Reviews & Top Picks

While it’s an almost universal truth that shampooing your cat is not high on the list of fun activities, sometimes it can’t be avoided. If your cat has dandruff, they’ll be feeling itchy and scratchy. Choosing to bathe them using...

grey cat bath shampoo bubbles

9 Best Whisker Relief Cat Bowls for Cats in 2025 – Reviews & Top Picks

Your cats’ whiskers help your cat balance and navigate their way through life. They are also attached to blood vessels and nerves, causing them to be incredibly sensitive. Whisker fatigue can happen when your cat has to dip their face...

himalayan persian cat eating hepper nom nom bowl

Are Lilies Toxic to Cats? Vet-Verified Facts & Safety Tips

Renowned for their large trumpet-like dazzling flowers and a robust scent, lilies are elegant and strikingly beautiful – a delightful addition to a household, especially during Easter celebrations. However, these attractive perennial flowers are a ‘NO’ for cat-friendly households and...

Catster_Are Lilies Toxic to Cats

Are Azaleas Poisonous to Cats? Vet-Reviewed Houseplants Examined

Azaleas are ornamental shrubs that are incredibly popular and loved by gardeners everywhere. Not only are they sturdy, resistant plants, but the flowers also turn stunning colors that range from a vibrant jewel color to a pretty, pale pastel hue....

Catster_Are Azaleas Poisonous to Cats

Can Cats Eat Palm Leaves? Vet-Approved Facts & FAQ

Palms are common plants that are easy to care for and pleasing to the eye. They are distinguished by their large leaves, known as fronds, that give off a tropical vibe. Palm plants are used to decorate home and office...

Can Cats Eat Palm Leaves

Why Does My Cat Fart When I Pick Him Up? 5 Vet-Reviewed Reasons

As much as you love your cat, there are times when they can be a little gross. Times like when they repeatedly shove their butt in your face or the way they can fart when you pick them up. While...

male owner holding his devon rex cat

How to Collar Train a Cat: 8 Vet-Approved Steps

When you think of collars, you might automatically think of dogs. But collars can also be useful for cats (and in fact, they should be used in certain situations), and you can choose from a few types. Choosing and fitting...

a cat with collar on sitting on the floor

My Cat Ate Aluminum Foil, What to Do: Vet Approved Facts & FAQ

It’s a well-known fact that many cats are not fond of aluminum foil, and some hate it. The horrible noise, reflective surface, and odd texture make cats uncomfortable, but does aluminum foil cause actual harm to cats? If you’re worried...

My Cat Ate Aluminum Foil