§ 13.12.140. Connections subject to backpressure  


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  • A potable water connection is made to a line, fixture, tank, vat, pump or other equipment with a hazard of backflow or backsiphonage, where the water connection is subject to backpressure and an air gap cannot be installed, the city building inspector may require the use of an approved reduced pressure principle backflow preventer. A partial list of such connections is shown in Table 13.12.140, "Partial List of Cross Connections Subject to Back Pressure."

    Table 13.12.140

    Partial List of Cross Connections Subject to Back Pressure

    Chemical lines Pumps
    Dock water outlets Steam lines
    Individual water supplies Swimming pools
    Industrial process water
    lines Pressure tanks
    Tanks and vats—Bottom
    inlets Hose bibs

     

(Ord. 8909 § 4(b), 1989)