NAC445A.6553. “Air gap” defined.

Latest version.

“Air gap” means a physical separation between a point of free-flowing discharge from a pipe that supplies liquid to an open or nonpressurized vessel and the overflow rim of that vessel which is:

1. At least twice the effective diameter of that pipe or, if the pipe is affected by side walls, at least three times the effective diameter of that pipe; and

2. In no case less than 1 inch.

(Added to NAC by Bd. of Health, eff. 2-20-97)

                    
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