A reduced pressure backflow preventer shall be required for the following hazards:
(A) Residents with hot water heat (boilers); the boilers should have, as per the State Plumbing Code, an expansion tank and or safety valves to prevent expansion problems; and
(B) Any residence with a private auxiliary water supply connected to the public supply through the user's private water supply system.
(1998 Code, § 9-130) (Ord. 582, passed - -1996)