§ 50-168. Plumbing.

(a)

Generally. Plumbing in a food service establishment shall be sized, installed and maintained according to law. There shall be no cross connection between the potable water supply and any nonpotable or questionable water supply or any source of pollution through which the potable water supply might become contaminated.

(b)

Nonpotable water system. A nonpotable water system is permitted only for purposes such as air conditioning and fire protection and only if the system is installed according to law and the nonpotable water does not contact, directly or indirectly, food, potable water, equipment that contacts food or utensils. The piping of any nonpotable water system shall be durably identified so that it is readily distinguishable from piping that carries potable water.

(c)

Backflow. The potable water system shall be installed to preclude the possibility of backflow. Devices shall be installed to protect against backflow and backsiphonage at all fixtures and equipment where an air gap at least twice the diameter of the water supply inlet is not provided between the water supply inlet and the fixture's flood level rim. A hose shall not be attached to a faucet unless a backflow prevention device is installed.

(d)

Grease traps. If used, grease traps shall be located to be easily accessible for cleaning.

(e)

Garbage grinders. If used, garbage grinders shall be installed and maintained according to law.

(f)

Drains. Except for properly trapped open sinks, there shall be no direct connection between the sewer system and any drains originating from equipment in which food, portable equipment or utensils are placed. When a dishwashing machine is located within five feet of a trapped floor drain, the dishwasher waste outlet may be connected directly on the inlet side of a properly vented floor drain trap if permitted by law.

(Code 1970, § 11-92; Ord. No. 80-24, §§ 6.7—6.12, 9-23-80)