Do cats need a water fountain?

Why water intake is a real issue in cats

Cats evolved to get most of their water from prey and have a weak thirst drive relative to their needs. A cat eating only dry food takes in substantially less total water than one eating wet, and low intake produces more concentrated urine. That matters for two of the most common feline diseases: chronic kidney disease and lower urinary tract disease.

Diet is the bigger lever. Switching some or all of the ration to wet food moves more water than any fountain will, because the water arrives with the food rather than requiring the cat to decide to drink.

When a fountain earns its place

• Cats diagnosed with CKD, FLUTD or a history of urinary crystals, where every increment of intake is useful.
• Cats who will not eat wet food, so diet cannot do the work.
• Cats who already show a preference for running taps, dripping showers or the glass on your bedside table.
• Multi-cat homes, where a fountain adds a station that is not being guarded.

Some cats ignore fountains entirely, and a few are put off by the motor noise. Leave the old bowls in place for at least a fortnight rather than switching over, so a cat who dislikes it is not left choosing between an unpleasant fountain and nothing.

Practicalities people underestimate

• Filters need replacing on schedule and the pump needs disassembling and cleaning, or the fountain grows biofilm and smells. This is the reason most fountains end up in a cupboard.
• Stainless steel and ceramic clean properly. Plastic scratches, holds bacteria, and is associated with chin acne in some cats.
• Site water away from food and away from the litter box.
• Wide, shallow bowls suit cats whose whiskers touch the sides of a narrow one.
• Keep the ordinary bowls topped up regardless. Redundancy costs nothing.