After thorough cleaning, spray or sprinkle pesticides around the water dispenser where it touches the ground:

Just add a few broken leeks to the sugar jar to prevent ants. Bottle some water with unwanted perfume and put it on the floor next to the water dispenser, so that ants will not appear around the water dispenser.

Bake the eggshell with fire until the surface is a little burnt (not all burnt). Mash the eggshell, put it in a plastic cover, and then put the plastic cover under the foot of the table. Sprinkle talcum powder (prickly heat powder) where the ants walk, and the ants will not be seen every few days. Ants are afraid of the smell of rubber bands, so they can tie the rubber bands to the feet of a table or a jar.

Extended information:

Ants are divided into lower species, carnivorous, and feed on insects, small animals and even sick and dead animals; Stinky ant subspecies, a higher species of Formicidae and Formicidae, can feed on animals and plants, especially the honey dew secreted by aphids and scale insects; Most other ants are omnivorous, feeding on seeds, fruits, insects and so on.

Ants communicate with the smell of secretions. Because they usually live in an ant nest, this way of communication is better than other HYMENOPTERA insects. If an ant finds food, it will leave a smell all the way home, and other ants will follow this route to find food and constantly strengthen the smell.