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204.07 Backflow Prevention Devices
   A.   Any Backflow Prevention Device required by these Rules and Regulations, shall be of a model or construction approved by the Water Purveyor and shall comply with the following:
      1.   An Air Gap Separation, to be approved, shall be at least twice the diameter of the supply pipe as measured vertically above the top rim of the vessel; but shall in no case be less than one (1) inch;
      2.   Any Double Check Valve Assembly or Reduced Pressure Principal Backflow Prevention Device required by this regulation shall be approved by the Water Purveyor and appear on the most recent list of Approved Backflow Prevention Devices published by the OEPA;
      3.   An Interchangeable Connection, to be approved, shall be either a swing type connector or a four-way valve of the lubricated plug type that operates through a mechanism which unseats the plug, turns it ninety degrees, and reseats the plug. Four-way valves shall not be used as stop valves but must have separate stop valves on each pipe connected to the four-way valve, and shall have no piping connected. The threads or flange on this port shall be destroyed so that a connection cannot be made.
      4.   All Backflow Prevention Devices shall include properly located test cocks and manufacturer approved tightly closing shut-off valves.
      5.   The requirements of OAC 3745-95-06(A).
   B.   Existing Backflow Prevention Devices, approved by the Director or the Director of the OEPA at the time of installation and properly maintained, shall, except for inspection, testing and maintenance requirements, be excluded from the requirement of section (A) above, providing the Water Purveyor is assured that they will satisfactorily protect the public potable water system. Whenever the existing device is moved from the present location or requires more than minimum maintenance, or when the Water Purveyor finds that the maintenance of the device constitutes a hazard to health, the device shall be replaced by a Backflow Prevention Device meeting the requirements of these Rules and Regulations.
204.08 Installation
   A.   Backflow Prevention Devices required by these Rules and Regulations shall be installed at a location in a manner approved by the Water Purveyor at the expense of the water Consumer. For detailed instruction refer to the Division of Water Distribution's Standard Detail Drawing - Backflow Prevention Setting and Installation Rules.
   B.   The installation of Backflow Prevention Devices in the City service territory must be by a plumbing contractor licensed by the City and an approved Backflow Prevention Device installer.
   C.   Backflow Prevention Devices shall be installed on the Customer's side of the water meter as close to the meter as reasonably practical and prior to any other connection.
   D.   Reduced Pressure Principle Backflow Prevention Assemblies must be installed above ground level or floor level, whichever is higher.
204.09 Inspection And Maintenance
   A.   It shall be the duty of the Consumer at any Premises on which Backflow Prevention Devices required by these Rules and Regulations are installed to have inspections, tests, and repairs made in accordance with the following schedule, or more often where inspections indicate a need:
      1.   Fixed Air Gap Separation shall be inspected at the time of installation and at least every twelve (12) months thereafter;
      2.   Double Check Valve Assemblies shall be inspected and tested for tightness at the time of installation and at least every twelve (12) months thereafter. They shall be dismantled, inspected internally, cleaned and repaired whenever needed and at least every thirty (30) months.
      3.   Reduced Pressure Principle Backflow Prevention Assemblies shall be inspected and tested for tightness at the time of installation and at least every twelve (12) months thereafter. They shall be dismantled, inspected internally, cleaned and repaired whenever needed and at least every five (5) years.
      4.   Pressure vacuum breakers shall be inspected and tested for capability to prevent back-siphonage at the time of installation and at least every twelve (12) months thereafter and rebuilt whenever needed. The assembly shall be routinely inspected at least every three (3) months by the Owner for visible conditions which would or could prevent the normal functioning of the assembly.
      5.   Interchangeable Connections and low pressure cut-offs shall be inspected at the time of installation and at least every twelve (12) months thereafter.
   B.   Inspections, tests and rebuilding of Backflow Prevention Devices shall be made at the expense of the water Consumer and shall be performed by a State of Ohio, Department of Health, Certified Backflow Tester who must also be registered with the Division of Water Distribution. The Department may charge a registration fee.
   C.   Whenever Backflow Prevention Devices required by these Rules and Regulations are found to be defective, they shall be repaired or replaced without delay at the expense of the Owner.
   D.   The water Consumer must maintain a complete record of each Backflow Prevention Device from purchase to retirement. This shall consist of a comprehensive listing that includes a record of all tests, inspections, repairs and rebuilds. Records of inspections, tests, repairs and rebuilds shall be submitted to the Director.
   E.   Backflow Prevention Devices shall not be bypassed, made inoperative, removed or otherwise made ineffective without specific authorization by the Director.
204.10 Booster Pumps
   A.   Fire suppression systems containing booster pumps installed after the effective date of OAC 3745-95-07 shall include a minimum pressure-sustaining valve, which shall be set to close, should the supply pressure drop below 10 psi. Where a booster pump has been installed prior to the effective date of OAC 3745-95-07 on the Service Line to or within any Premises, such pump shall be equipped with a low pressure cut-off device designed to shut-off the booster pump when the pressure in the Service Line of the suction side of the pump drops to ten (10) pounds per square inch gauge or less.
   B.   It shall be the duty of the water Consumer to maintain the minimum pressure sustaining valve or low pressure cut-off device in proper working order and to certify to the Water Purveyor, at least one a year, that the device is operating properly.
204.11 Violations
   A.   The Department may deny or discontinue water service to any Premises, after reasonable notice to the occupants, where any Backflow Prevention Device required by these Rules and Regulations is not installed, tested and maintained in a manner acceptable to the Director; or if it is found that the Backflow Prevention Device has been removed or by-passed, or if an unprotected Cross-Connection exists on the Premises, or if a minimum pressure sustaining valve or low pressure cut-off required by these Rules and Regulations is not installed and maintained in working order or for any other violation of the foregoing regulations regarding backflow prevention.
   B.   Water service to such Premises shall not be restored until the Consumer has corrected or eliminated the conditions or defects in these Rules and Regulations and to the satisfaction of the Director.
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