What is the minimum size of water supply inlet for a stall urinal?

The minimum size of the water supply inlet for a stall urinal is 3/4 inch. This dimension is established to ensure that the urinal receives an adequate flow of water for effective flushing and to maintain sanitary conditions. A larger inlet allows for sufficient volume and pressure to clear waste and prevent clogs, which can be especially important in high-use facilities where proper sanitation is crucial.

Using an inlet that is 3/4 inch ensures that the urinal can operate effectively without experiencing issues related to inadequate water supply. Smaller inlet sizes, such as 1/2 inch or 3/8 inch, might restrict the necessary flow of water, potentially leading to performance problems like insufficient flushing power or increased maintenance needs due to clogs.

Therefore, the choice of 3/4 inch as the minimum size is critical for ensuring the proper functionality of stall urinals in various settings.