Your cat howling at the water bowl is not uncommon it seems to me because there are a lot of posts on this particular topic on the Internet. Invariably the cat’s owner is trying to find answers. They rarely succeed because I have seen a multitude of possibilities but nothing that sounds true to me. Why do cats walk up to their water bowls and howl?
An interesting aspect of this peculiar problem is that all the discussions are about cats howling in front of water bowls and not food bowls. The key may be in the fact that the trigger is water. Water is an excellent conductor of electricity while food isn’t. Please see static electricity charge discussion below.
Howling before drinking would indicate that the cat is concerned about feeling pain while he drinks. If that is true then something is causing the cat pain while he drinks. What might it be? There are several potential answers, perhaps too lengthy to discuss here. One is that he feels pain because he has poor oral health due the gum disease and teeth in poor condition. Cold water would be painful to drink. This is supported by the fact that a lot of these cats are elderly with a higher chance of poor oral health which is tricky to spot. Also howling is not uncommon among elderly cats and is generally considered to be due to confusion which in turn is due to perhaps early-stage dementia. Not a lot has been written about feline dementia. There is no reason to suggest why it should not exist as commonly as in the human population. We know that air pollution is a major issue in today’s world. A lot of cats are outdoor cats breathing the same air. Studies have linked air pollution with dementia.
Static Charge — The Most Likely Reason Why Cats Howl At Their Water Bowl
Another possibility is that the cat receives a static electricity shock when his whiskers touch the edge of the bowl. Perhaps the bowl is made of metal. As mentioned, we know that metal and water are good conductors of electricity. Perhaps the cat has charged himself while walking over the floor or more likely he has gained a static charge because he’s been petted or brushed by his owner. When he puts his tongue into the water the charge is discharged through the water via the tongue or the whiskers and he feels a slight shock. He is howling in preparation for that shock. It is a statement of his distaste of what is surely to come.
If the floor where the bowl is located is of a synthetic material then it is possible a cat can gain a static electricity charge while rolling around on it or even walking on it. It may be possible to stop the discharge of the electricity from the cat through the water by placing the water in a ceramic water bowl and placing the bowl on a fiber mat (a material which does not conduct electricity).
These are my thoughts. I have racked my brains. There is nothing in the books that I have on this particular problem. And, as mentioned, the Internet was unhelpful to me. If you have some good ideas, I would very much appreciated if you would write a comment.