What is the typical water connection size for urinals?

The typical water connection size for urinals is generally a 3/4 inch spud. This size strikes a balance between providing adequate water flow for flushing while not being excessively large, which could lead to waste or require more extensive plumbing fittings. The design of urinals typically allows for efficient water usage, which helps in maintaining sanitary conditions and preventing clogs.

In plumbing codes and standards, a 3/4 inch connection is widely accepted for most commercial urinals, facilitating sufficient water supply for effective flushing while also conforming to most plumbing system requirements. Smaller sizes, such as a 1/2 inch spud, may not provide enough flow for effective operation, while larger sizes like 1 inch or 1 1/4 inch may not be necessary and could complicate installation or increase costs without added benefit.