A cat water fountain continuously comes into contact with water, hair, dust and sometimes limescale. Even with a filter, it therefore needs regular maintenance. Proper cleaning helps keep the reservoir clean, maintain a steady flow and prevent a dirty pump from becoming noisy.
In this guide, you will find a simple method for cleaning the reservoir, water channels, pump and filter without damaging your fountain. The manufacturer's instructions for your model should always take priority, especially for electrical parts and whether any components are dishwasher-safe.
How often should you clean a cat water fountain?
There is no universal cleaning schedule for every fountain. The amount of hair, number of animals, water hardness, room temperature and pump design all affect maintenance needs.
As a practical guideline, a full clean about once a week works for many households. Also inspect the pump regularly and clean it whenever the flow decreases, it becomes noisier or deposits appear. Some models recommend taking the pump apart for cleaning around every two weeks.
If several animals use the same fountain or your water is very hard, more frequent cleaning may be necessary.
For the filter, read our dedicated guide: how often should you change a water fountain filter?
What do you need to clean your fountain?
- lukewarm water;
- a soft sponge or cloth;
- a small amount of mild washing-up liquid for washable parts;
- a small brush for tubes and hard-to-reach areas;
- a clean towel for drying;
- optionally, white vinegar for limescale, only on compatible parts and if permitted by the manufacturer's instructions.
Avoid abrasive sponges and harsh products that may scratch surfaces or leave residues.
You can find useful consumables and accessories in our Filters and care collection.
How to clean a cat water fountain step by step
1. Switch off and unplug the fountain
Always disconnect the power before starting. If your model has a battery or electronic base, follow the procedure in its instructions. Handle connectors with dry hands.
2. Empty the water and remove detachable parts
Remove the lid, tray, reservoir, tubes and other detachable components. Take the opportunity to notice where hair and deposits tend to collect.
3. Remove the filter
Take the filter out before using soap on the other components. Do not clean a filter with washing-up liquid. Rinse it with clean water if permitted by the manufacturer's instructions and remove visible hair or debris.
4. Wash the reservoir and compatible parts
Clean the surfaces with lukewarm water, a soft sponge and a small amount of mild washing-up liquid. Pay particular attention to corners, areas under the lid and places where water circulates less.
5. Clean tubes and small recesses
A small narrow brush is particularly useful inside tubes, around water outlets and in pump housings. These areas may look clean from the outside while still holding deposits inside.
6. Clean the pump
If your pump is designed to be taken apart, remove its cover and then the impeller or rotor according to your model's instructions. Gently remove hair and residue collected around the shaft and inside the pump chamber.
Important: pumps and bases are not all cleaned in the same way. Never immerse an electronic base, charging port or any part that the manufacturer states is not submersible.
7. Rinse very thoroughly
Rinse every component that has been in contact with soap until no foam or residue remains. Thorough rinsing is just as important as washing.
8. Dry electrical areas and reassemble the fountain
Dry any areas that must remain dry, reassemble each component in the correct order, replace the filter and fill the fountain with clean water. Then check that the flow is normal and that there is no unusual noise.
How do you clean a cat water fountain pump?
The pump is one of the most commonly forgotten parts. Yet just a few hairs around the impeller can be enough to reduce the flow or increase noise.
When your model is designed to allow it:
- unplug the fountain;
- remove the pump;
- open the removable cover;
- carefully remove the impeller or rotor;
- rinse compatible parts with clean water;
- use a small brush to reach recesses;
- reassemble the pump in reverse order.
If the pump does not come apart as expected, do not force it. Check the manufacturer's instructions. Breaking a component during cleaning is far more costly than taking a minute to check the manual.
How do you clean a water fountain filter?
The filter should not be washed in the same way as the reservoir. In most systems it can be rinsed with clean water to remove visible particles, but soap should not be used. A filter that is very dirty, saturated, misshapen or no longer allows water to pass through properly should be replaced.
Its lifespan depends on the model, water quality and the number of animals using the fountain. Avoid treating a fixed interval as an absolute rule.
For more detail, read our guide to replacing filters and browse our Filters and care collection.
How do you remove limescale from a water fountain?
Limescale can form a white film or deposits around the reservoir, water outlets and circulation components. Start with gentle cleaning.
For some fountains and non-electrical parts, the manufacturer may allow diluted white vinegar to dissolve deposits. Only use this method if it is compatible with your model, never apply it to electronic components and rinse thoroughly afterwards.
Do not scrape limescale with a metal object or abrasive sponge, as this could scratch stainless steel or plastic.
How do you clean a stainless steel fountain?
Stainless steel can generally be cleaned using a soft sponge, lukewarm water and mild washing-up liquid. Rinse and then dry the surface to reduce water marks.
Some stainless steel components may be dishwasher-safe, but this does not automatically mean that the entire fountain can go in the dishwasher. Always check the instructions: a dishwasher-safe reservoir does not mean the pump, base or connectors are dishwasher-safe.
If you are still deciding on material, read our comparison stainless steel or plastic water fountain: which should you choose?. For a broader comparison of capacities, power options and features, see our guide to choosing a cat water fountain.
Why does the inside of my fountain become slippery?
A slippery feel on the surfaces generally indicates that a film of residue has formed. This can happen faster when several animals use the fountain, the room is warm or cleaning has been less frequent.
In this case, do not simply replace the water: take the fountain apart and thoroughly clean the reservoir, water channels, pump and hidden areas.
Why is my fountain noisier after a few days?
A new noise can be caused by a low water level, air in the water circuit, hair in the pump, an incorrectly positioned impeller or a dirty filter. Start by disconnecting the power, checking the water level and inspecting the pump.
If the noise continues after correct cleaning and reassembly, check the model instructions or contact customer service.
Mistakes to avoid when cleaning
- Cleaning the fountain while it is still powered.
- Using soap on the filter.
- Immersing an electronic base or non-waterproof connector.
- Using an abrasive sponge or harsh cleaning product.
- Cleaning only the reservoir and forgetting the pump and water channels.
- Forcing apart a pump with a different design.
- Putting the fountain back into service before all soap residue has been removed.
- Allowing the pump to run with insufficient water.
FAQ: cleaning a cat water fountain
Can you clean a cat water fountain with white vinegar?
For some models and some non-electrical parts, yes, particularly for limescale. Always check the manufacturer's instructions, use a suitable dilution and rinse thoroughly before putting the fountain back into service.
Can a water fountain go in the dishwasher?
Only components explicitly stated by the manufacturer to be dishwasher-safe. Pumps, cables, charging ports and electronic bases should not be put in the dishwasher.
How often should you clean the fountain?
A full weekly clean is a useful guideline for many households, but frequency should be adapted to the number of animals, the water used and the model's recommendations. Clean sooner if you see deposits, the flow decreases or an odour develops.
How do you clean a water fountain pump?
Disconnect the power, remove the pump and only take apart the components intended by the manufacturer. Clean hair and deposits around the impeller and in recesses, then rinse compatible parts and reassemble them correctly.
Should you wash the filter with soap?
No. Soap should not be used on the filter. Rinse it with clean water where the manufacturer permits and replace it when saturated or excessively dirty.
Why does fountain water get dirty quickly?
Hair, dust, food residue, multiple animals or a warm room can cause faster build-up. Clean the fountain more frequently and also check the filter and pump.
How can you reduce limescale in a fountain?
Frequent maintenance helps stop deposits becoming too thick. If your water is very hard, check the surfaces more often and only use descaling methods that are compatible with your model.
Should the water be changed every day?
Water should be kept clean and refreshed regularly. The exact frequency depends on capacity, the number of animals and the environment. Check the water level and appearance every day and refresh it sooner if it contains debris or appears altered.
In summary
When maintaining a water fountain, remember four areas: the reservoir, water channels, filter and pump. Always unplug the device, use gentle tools, never apply soap to the filter and keep electrical components away from water unless they are designed to be immersed.
For maintenance supplies, browse our filters and care accessories. If you have a question about filter compatibility or cleaning a particular model, visit the THYLY FAQ or contact us.