2014-008 Amending Chapter 25, Plumbing and Gas, of the Code of Ordinances of the City of Paris, adding Article IV, Irrigation Standards

Home Browse Search

(2) Reduced pressure principle backflow prevention assemblies may be used if- (A) the device is installed at a minimum of 12 inches above ground in a location that will ensure that the assembly will not be submerged; and (B) drainage is provided for any water that may be discharged through the assembly relief valve. (3) Pressure vacuum breakers may be used if. (A) no back - pressure condition will occur; and (B) the device is installed at a minimum of 12 inches above any downstream piping and the highest downstream opening. Pop -up sprinklers are measured from the retracted position from the top of the sprinkler. (4) Atmospheric vacuum breakers may be used if: (A) no back - pressure will be present; (B) there are no shutoff valves downstream from the atmospheric vacuum breaker; (C) the device is installed at a minimum of six inches above any downstream piping and the highest downstream opening. Pop -up sprinklers are measured from the retracted position from the top of the sprinkler; (D) there is no continuous pressure on the supply side of the atmospheric vacuum breaker for more than 12 hours in any 24 -hour period; and (E) a separate atmospheric vacuum breaker is installed on the discharge side of each irrigation control valve, between the valve and all the emission devices that the valve controls. (c) If there are no conditions that present a health hazard, a double check valve backflow prevention assembly may be used, and shall be installed in accordance with the manufacturer's instructions. If a double check valve is installed below ground: (1) test cocks shall be plugged, except when the double check valve is being tested; and (2) test cock plugs shall be threaded, water - tight, and made of non - ferrous material; and (3) a Y -type strainer shall be installed on the inlet side of the double check valve; and (4) there shall be a minimum 6 inch clearance between any fill material and the bottom of the double check valve to allow space for testing and repair; and (5) there shall be space on the side of the double check valve to test and repair the double check valve; and (6) double check valve shall be 12 inches minimum below grade; and (7) double check boxes shall be 18 inches minimum deep with a pea gravel base at least 4 inches deep; and (8) double check boxes shall not be placed with any public right of way and shall be as near as possible to the water meter.