Cats often show more interest in moving water. Common explanations include reflected light and sound making it easier to notice, fresher surface water, and a wild ancestry that favoured avoiding stagnant water. These are behavioural preferences, not universal rules.
A fountain is not essential. Cats sensitive to noise, whiskers or appliances may avoid one. The useful test is simple: after the change, did actual water intake and urine output rise, or did the cat only glance at it in passing?
A safer sequence is to fix the basics first: wide shallow bowls, fresh water daily, bowls in several places the cat already uses, away from the litter box and food. If intake is still low, then consider running water, wet food or rehydrated freeze-dried food.
Fountains need maintenance. Pumps, filters and seams can develop biofilm, so dismantle and clean weekly and replace filters as instructed. Adding water without cleaning makes a more expensive device a bigger hygiene risk.
The warning sign is not “picks at the bowl” but a sudden clear increase in drinking together with weight loss, larger urine clumps, appetite change or lethargy. Prompt blood and urine tests are warranted rather than another bowl change.
Image: cat drinking from a pet fountain spout, by TrainSimFan, CC BY-SA 4.0, Wikimedia Commons: https://commons.wikimedia.org/wiki/File:A_cat_drinking_water.jpg
