Backflow prevention assemblies required by this chapter must be inspected and approved by the city council.
A. Acceptable Types: Any protective device required by this chapter shall be inspected and approved by the city council. A double check valve assembly or a reduced pressure principle backflow prevention assembly will be approved if it has successfully passed performance tests of University Of Southern California, Foundation For Cross Connection Control And Hydraulic Research, or other testing laboratories satisfactory to the city council. Backflow prevention assemblies which are in service but are not listed shall be permitted to remain in service provided they:
1. Were listed on the current approved cross connection control assembly list at the time they were installed,
2. Are properly maintained,
3. Are commensurate with the degree of hazard, and
4. Are tested and successfully pass the test annually.
When these assemblies are moved, or require more than minimum maintenance, they shall be replaced by an assembly that is on the current list of approved assemblies. To maintain their approval status all assemblies must be delivered to the job site and be installed with the shutoff valves 1 and 2 and test cocks which are supplied by the device manufacturer. (Ord. 173, 2-13-2013)