How must drinking fountains be maintained?

Drinking fountains must be maintained in a sanitary manner to ensure that they are safe for public use. This means that the surfaces of the fountain, including the spouts, basins, and surrounding areas, should be regularly cleaned and disinfected to prevent the buildup of bacteria, mold, and other contaminants. Sanitary maintenance is crucial because it minimizes the risk of waterborne illnesses and helps maintain the overall health of individuals using the fountain.

While the other options may seem appealing in certain contexts—like the idea of cold water being refreshing or decorative fixtures enhancing aesthetics—they do not directly address the health and safety regulations that guide the maintenance of drinking fountains. Ensuring sanitary conditions is the priority to protect public health, making it the key focus when maintaining these fixtures.