3717-1-05.1(J) Water, plumbing, and waste: plumbing system

Backflow prevention device - when needed. A plumbing system is to 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 service operation or retail 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 mandated by the Ohio plumbing code, by:

(1)

Providing an air gap as specified under paragraph (D) of this rule; or

(2)

Installing an approved backflow prevention device as specified under paragraph (E) of this rule.