A plumbing system must be installed to preclude backflow of a solid, liquid, or gas contaminant into the water supply system at each point of use at the food establishment, including on a hose bibb if a hose is attached or on a hose bibb if a hose is not attached and backflow prevention is required by law, by:
(1) Providing an air gap as specified under WAC
246-215-05215; or
(2) Installing an
approved backflow prevention device as specified under WAC
246-215-05220.
[Statutory Authority: RCW
43.20.050 and
43.20.145. WSR 21-01-122, § 246-215-05245, filed 12/15/20, effective 3/1/22; WSR 13-03-109, § 246-215-05245, filed 1/17/13, effective 5/1/13.]