Toilet water is useful in repelling cats. Cats have a sensitive sense of smell, and toilet water is very irritating to cats. Cats do not like the smell of toilet water and will consciously avoid it when they smell the smell of toilet water. However, it is recommended that cat owners not use toilet water to repel cats, because toilet water is more harmful to cats. You can choose to use citrus fruits to repel cats, including oranges, tangerines, lemons and grapefruits. People can put citrus peels in a small bowl and place them on a shelf next to breakable items or other places they don't want cats to go.

The harm of toilet water to cats:

1. Most toilet water contains pyrethroids. Because cats lack glucuronosyltransferase in their livers and cannot metabolize it, pyrethroids above a certain concentration are toxic to cats.

2. Toilet water has a very strong pungent smell, which will affect the cat’s sense of smell and cause the cat to sneeze, shed tears and other symptoms.

3. Cats accidentally ingesting toilet water can cause adverse reactions such as vomiting, convulsions, and poisoning.