How to Clean a Cat Water Fountain: A Complete Guide

A cat water fountain is one of the best investments you can make for your cat's health — but only if it's kept clean. A dirty fountain can harbour bacteria, algae, and biofilm that make water unappealing or even unsafe for your cat to drink. The good news: cleaning a fountain is straightforward once you know the routine. Here's everything you need to know.

Why Cleaning Matters

Even though the water in a fountain is continuously circulating and filtered, the fountain itself still needs regular cleaning. Here's why:

• Biofilm — a thin, slimy layer of bacteria that forms on any surface in contact with water. It's invisible to the eye but cats can smell it, and it can make them reluctant to drink.
• Algae — green or brown growth that develops when the fountain is exposed to light. Algae isn't immediately dangerous but signals that the fountain needs cleaning.
• Mineral deposits — white or grey scale that builds up from minerals in tap water, particularly on the pump and around the water line.
• Hair and debris — cat hair, dust, and food particles accumulate in the fountain and can clog the pump if not removed regularly.

A clean fountain keeps water tasting fresh, extends the life of the pump, and ensures your cat keeps drinking consistently.

How Often Should You Clean a Cat Water Fountain?

Here's a simple cleaning schedule to follow:

• Daily — top up the water level and do a quick visual check for debris or discolouration
• Weekly — full disassembly and cleaning of all parts, including the pump impeller
• Every 2–4 weeks — replace the filter (follow the manufacturer's recommendation)
• Monthly — deep clean to remove any mineral scale buildup

In warmer months or in households with multiple cats, you may need to clean more frequently. If you notice the water looking cloudy, smelling off, or your cat showing less interest in the fountain, clean it immediately regardless of schedule.

What You'll Need

Before you start, gather:

• Mild dish soap (unscented is best — cats are sensitive to strong fragrances)
• A soft brush or bottle brush for cleaning the pump and tubing
• A small toothbrush or cotton swabs for hard-to-reach areas
• White vinegar (for mineral scale removal)
• Clean towels or paper towels
• A replacement filter if it's time to change it

Avoid bleach, strong chemical cleaners, or heavily scented soaps. Even small residues can be harmful to cats or deter them from drinking.

Step-by-Step: Weekly Cleaning

Step 1: Unplug the Fountain

Always unplug the fountain before disassembling it. Never put electrical components in water.

Step 2: Disassemble All Parts

Take the fountain apart completely. For the Kinova Automatic Cat Water Fountain, this means removing the reservoir, the pump, the filter, and any trays or covers. Lay all parts out on a clean surface.

Step 3: Remove and Rinse the Filter

Remove the filter and set it aside. Don't wash the filter with soap — just rinse it gently under cold water to remove loose debris. If it's time to replace it (every 2–4 weeks), discard the old filter and set a new one aside to install after cleaning.

Step 4: Clean the Reservoir and Outer Parts

Wash the reservoir and all plastic or ceramic parts with mild dish soap and warm water. Use a soft cloth or sponge to scrub all surfaces, paying attention to corners and crevices where biofilm tends to accumulate. Rinse thoroughly — any soap residue can affect the taste of the water.

Step 5: Clean the Pump

The pump is the most important part to clean. Remove the pump cover and take out the impeller — the small magnetic rotor inside. Rinse the impeller under running water and use a small brush or cotton swab to remove any buildup from the impeller shaft and housing. A dirty impeller is the most common cause of increased pump noise and reduced water flow.

Step 6: Clean Tubing and Small Parts

Use a bottle brush or pipe cleaner to clean any tubing. Rinse all small parts thoroughly under running water.

Step 7: Rinse Everything Thoroughly

Rinse all parts multiple times with clean water to ensure no soap residue remains. This step is important — cats can detect even faint soap smells and may avoid the fountain if it's not fully rinsed.

Step 8: Reassemble and Refill

Reassemble the fountain, install a fresh or rinsed filter, fill with fresh water, and plug it back in. Check that the pump is running smoothly and water is flowing correctly before leaving it for your cat.

Removing Mineral Scale: Monthly Deep Clean

If you notice white or grey deposits on the fountain — particularly around the waterline or on the pump — it's time to tackle mineral scale. White vinegar is the safest and most effective solution:

1. Fill the reservoir with a solution of equal parts white vinegar and water
2. Let it soak for 30–60 minutes (or longer for heavy buildup)
3. Use a soft brush to scrub away loosened scale
4. Rinse thoroughly — multiple times — until the vinegar smell is completely gone
5. Refill with fresh water and run the fountain for a few minutes before letting your cat use it

Never use vinegar on the filter — it will damage the filtration media. Always remove and set the filter aside before a vinegar soak.

Tips for Keeping the Fountain Cleaner for Longer

• Keep it out of direct sunlight. Light accelerates algae growth. Place the fountain in a shaded area of the room.
• Use filtered water. Tap water with high mineral content leads to faster scale buildup. Using filtered or low-mineral water reduces cleaning frequency.
• Keep it away from the food bowl. Food particles that splash or fall near the fountain can contaminate the water and accelerate bacterial growth.
• Change the filter on schedule. An old, saturated filter can actually make water quality worse. The Kinova fountain comes with 6 filters — a 6-month supply — so you always have replacements on hand.
• Clean your hands before handling the fountain. Oils and bacteria from your hands can transfer to the fountain surfaces.

Signs Your Fountain Needs Immediate Cleaning

Don't wait for the weekly schedule if you notice any of these:

• Cloudy or discoloured water
• Unusual smell from the fountain or water
• Visible slime or green growth
• Your cat suddenly showing less interest in the fountain
• Reduced water flow or increased pump noise

A Clean Fountain, A Healthier Cat

Regular cleaning takes less than 10 minutes once you have a routine — and it makes a real difference to your cat's willingness to drink. A well-maintained fountain provides fresh, filtered, flowing water that cats love, day after day.

The Kinova Automatic Cat Water Fountain is designed to make cleaning as easy as possible, with fully detachable parts that come apart in seconds. Keep it clean, keep the filter fresh, and your cat will have access to the best possible water every single day.