§ 46.862. Retention, drainage and delivery of sewage, other liquid waste and rainwater.

 (a)  Facility drainage system. Food facility drainage systems, including grease traps, that convey sewage shall be designed and installed as specified in §  46.822(a) (relating to design, construction and installation of plumbing systems).

 (b)  Backflow prevention.

   (1)  Except as specified in paragraphs (2) and (3), a direct connection may not exist between the sewage system and a drain originating from equipment in which food, portable equipment or utensils are placed.

   (2)  If allowed under Chapter 3 of the Pennsylvania Construction Code Act (35 P. S. § §  7210.301—7210.304), a warewashing machine may have a direct connection between its waste outlet and a floor drain when the machine is located within 1.5 m (5 feet) of a trapped floor drain and the machine outlet is connected to the inlet side of a properly vented floor drain trap.

   (3)  If allowed under Chapter 3 of the Pennsylvania Construction Code Act, a warewashing or culinary sink may have a direct connection.

 (c)  Grease trap. If used, a grease trap shall be located to be easily accessible for cleaning.

 (d)  Conveying sewage. Sewage shall be conveyed to the point of disposal through an approved sanitary sewage system or other system, including use of sewage transport vehicles, waste retention tanks, pumps, pipes, hoses and connections that are constructed, maintained and operated according to Chapter 3 of the Pennsylvania Construction Code Act and section 7 of the Pennsylvania Sewage Facilities Act (35 P. S. §  750.7).

 (e)  Removing mobile food facility wastes. Sewage and other liquid wastes shall be removed from a mobile food facility at an approved waste servicing area or by a sewage transport vehicle in a way so that a public health hazard or nuisance is not created.

 (f)  Flushing a waste retention tank. A tank for liquid waste retention shall be thoroughly flushed and drained in a sanitary manner during the servicing operation.

   This section cited in 7 Pa. Code §  46.884 (relating to operation and maintenance of storage areas, redeeming machines, receptables and waste handling units).