The best water for cats is the same water you drink. So, filtered water from the tap, spring water, or bottled water is good for felines.
Distilled water is not recommended because it can cause health issues. It lacks minerals and can lower urine pH, which could lead to kidney stones. This is because distilled water can soak into your pet’s tissues more than water containing minerals.
While cats are famous for drinking out of toilets, it’s not a good idea for them to consume toilet water. Again, if you wouldn’t drink it, your cat shouldn’t either. And that goes for puddles in your yard too. We understand it’s challenging to keep an outdoor cat from drinking any water it sees, but puddles and streams can have run off of pesticides, antifreeze, and other chemicals. All of which can make your cat very sick.
The best way to keep your outdoor cat from drinking potentially toxic water sources is to have a designated water bowl outside. Teach your fur baby where it is and keep it fresh and cool daily. Often just keeping it in a shady spot can create enough of a temperature difference to keep them happily hydrated.