What is the minimum size of the water supply inlet for a combination sink and tray?

The minimum size of the water supply inlet for a combination sink and tray is set at 1/2 inch. This size is considered optimal for ensuring adequate water flow to accommodate the demands of both the sink and the tray simultaneously. A 1/2 inch inlet allows for efficient water delivery, which is important for both functionality and efficiency in food preparation or cleaning tasks that typically involve such fixtures.

Choosing a smaller inlet size, like 3/8 inch, could potentially restrict water flow and create issues with pressure during peak usage. Larger sizes, like 3/4 inch or 1 inch, may be unnecessary for residential or standard commercial applications where a 1/2 inch supply is sufficient to meet the operational requirements without incurring added costs or complications in installation.