Nodie's

Plumbing fixture installation. plumbing fixtures, including compartment type utensil-and-food sinks, hand-washing sinks and mop or utility sinks, not installed to preclude splashes from running down mounting surfaces behind and adjacent to the fixture. acceptable installation methods include a liquid tight seal between fixture and mounting surface, insertion into a precut counter, table or cabinet with a perimeter seal or any other effective method. all materials used shall be safe, smooth, impervious and easily cleanable.

Backflow. an air gap between the water supply inlet and the flood level rim of the plumbing fixture / equipment / or nonfood equipment not at least twice the diameter of the water supply inlet and may not be less than 25 mm (1 inch). a backflow or backsiphonage prevention device installed on a water supply system shall meet american society of sanitary engineering (asse) standards for construction, installation, maintenance, inspection, and testing for that specific application and type of device. a backflow prevention device shall be located so that it can be serviced and maintained. a hose shall not be attached to a faucet unless a backflow prevention device is installed.

Construction. walls, including nonsupporting partitions / wall coverings / ceilings, of walk-in refrigerating units / food preparation areas / food storage areas / food display areas / equipment-washing areas / utensil-washing areas not light-colored / smooth / nonabsorbent / easily cleanable except for ceilings over areas used only for beverage preparation and/or service. concrete or pumice blocks used for interior wall construction in these locations shall be finished and sealed to provide an easily cleanable surface except in dry storage areas.

Wall protection. walls within water closet compartments / walls within two feet of the front and sides of urinals / hand-washing sinks / utensil-washing sinks / food sinks / mop or utility sinks / walls subject to damage from moisture not provided to a height of at least four feet above the finished floor with a smooth / light-colored impervious surface of a type not adversely affected by moisture or grease except that light-colored wall protection is not required in toilet rooms.