2 Va. Admin. Code § 5-585-2200
An air gap between the water supply outlet and the flood level rim of the plumbing fixture, equipment, or nonfood equipment shall be at least twice the diameter of the water supply outlet and may not be less than one inch (25 mm).P
§ 3.2-5121 of the Code of Virginia.
Derived from Virginia Register Volume 24, Issue 2, eff. October 16, 2007; amended, Virginia Register Volume 32, Issue 22, eff. July 12, 2016; Volume 37, Issue 19, eff. June 24, 2021.