What is the minimum height above the rim that a drinking fountain bubbler opening should be located?

The minimum height for a drinking fountain bubbler opening is set to ensure that the flow of water is above the rim of the basin. This is important for several reasons, including preventing overflow and the potential for contamination. A height of 1 inch above the rim generally provides a balance, allowing for sufficient access to the water while minimizing splashing and ensuring that users can drink safely and effectively. Standards for drinking water fountains specify this height to ensure usability for individuals, particularly in public settings. Maintaining this distance helps facilitate proper hygiene and ensures that the water remains uncontaminated by debris that may sit on the rim.