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The use of drip or blow-off valves for draining fire services shall be allowed only in cases of absolute necessity, as determined by the Department, and in no case shall their installation be permitted unless furnished with a valve, which shall be approved and sealed by the Division of Water Distribution, and the end of every such pipe shall be exposed to view at all times. The size of drip or blow-off pipes shall be as approved by the Division of Water Distribution in each case.
A. Fire pipes, valves and other accessories which are part of the fire protection system shall be so installed as to be reasonably and safely accessible for purposes of inspection at all times, unless exposed to the weather, in which case minimum earth cover of sixty inches (60") or equivalent, shall be maintained.
B. The contractor performing work in the City, on new or existing fire systems, shall be licensed by the State of Ohio Fire Marshal and certified by the Department of Fire & Rescue. Contractors working outside the City shall be licensed by the State of Ohio Fire Marshal and are subject to the requirements of the governing fire authority. The Owner shall submit to the Division of Engineering Services for approval the name of the contractor(s) employed to install the system. Once approval is granted, the Owner or the Owner's contractor(s) shall notify the Division at least three (3) days in advance of any work on the system so an inspector may be assigned to the job on all underground installation. Charges for the inspection shall be paid in advance as required in Chapter 200 of these Rules and Regulations.
C. Termination of underground construction of the fire service will be at the first joint above the floor line. The Customer will be responsible for construction to this joint. The Division of Water Distribution will have jurisdiction of the inside internal fire system, from the connection of the City water main to the wall valve. The jurisdiction may extend beyond these limits where underground systems extend off the internal fire systems when not metered.
D. Any underground work completed without being inspected by the Division of Water Distribution or the Division of Engineering Services, may be subject to complete exposure or any other inspection, all at the Customer's expense, which the Department may deem necessary before water is furnished through the service.
A. All tanks, cisterns or reservoirs maintained for fire purposes shall be metered at the expense of the Owners of the Premises or parties supplied.
B. Where a riser is installed in a building to provide fire protection through hoses in racks, the supply of water must come from the metered line and be connected on the outlet side of the meter.
C. In cases where it is not feasible to take the riser from the metered line, such as the height of the building, etc., it may, with the approval of the Division of Water Distribution, be taken from the fire system on the outlet side of the fire pumps; however, a monthly charge will be made for each hose rack opening, equal to that charged for each private fire hydrant on a fire system.
D. All jockey pumps used to maintain pressure on an un-metered fire main shall be supplied from a metered source.
A. All automatic fire protection systems shall have check valves as required by the NFPA.
B. Fire systems having a looped system with more than one source of supply from the City distribution system shall provide a check valve at each source. The check valve shall be located on private property and within ten feet (10') of the public right-of-way or as specified by Division of Engineering Services. Double check valves may be required, in lieu of single check valves, at each source to protect against pollution hazards, as determined by the Division of Water Distribution.
C. A standard Division of Water Distribution manhole shall be constructed over each check valve.
A. For Cross-Connection control, fire protection systems may be classified on the basis of water source and arrangement of supplies as follows:
1. Class 1 - Direct connections from public water mains only; no pumps, tanks or reservoirs; no physical connection from other water supplies; no antifreeze or other additives of any kind; all sprinkler drains discharging to atmosphere, dry wells, or other safe outlets.
2. Class 2 - Same as Class 1, except that booster pumps may be installed in the connections from the street water mains. (Booster pumps do not affect the potability of the system, but it is necessary to avoid drafting so much water that pressure in the water main is reduced below ten (10) psi.)
3. Class 3 - Direct connection from public water main plus one or more of the following: elevated storage tanks; fire pumps
taking suction from above-ground covered reservoirs or tanks; and pressure tanks. (All storage facilities are filled or connected to public water only, the water in the tanks to be maintained in a potable condition. Otherwise, Class 3 systems are the same as Class 1.)
4. Class 4 - Directly supplied from public water mains similar to Classes 1 and 2, and with an auxiliary water supply on or available to the Premises; or an auxiliary supply may be located within seventeen hundred feet (1,700') of the pumper connection.
5. Class 5 - Directly supplied from public water mains, and interconnected with auxiliary supplies, such as: pumps taking suction from reservoirs exposed to Contamination, or rivers and ponds; driven wells; mills or other industrial water systems; or where antifreeze or other additives are used.
6. Class 6 - Combined industrial and fire protection systems supplied from the public water mains only, with or without gravity storage or pump suction tanks.
B. Class 1, 2 and 3 fire protection systems will normally require minimum protection (approved double-check valves) to prevent stagnant waters from back-flowing into the public potable water system. Class 4 systems will normally require Backflow prevention at the Service Connection. The type (air gap, reduced-pressure, or double check valves) will generally depend on the quality of the auxiliary supply. Classes 4 and 5 systems normally need maximum protection (air gap or reduced pressure) to protect the public potable water system. Class 6 system protection depends on the requirements of both industry and fire protection, and can only be determined by a survey of the Premises.
C. A meter (compound, detector check) is not normally permitted as part of a Backflow Prevention Device. Exceptions may be made if the meters and Backflow Prevention Devices are specifically designed for that purpose.
D. All "Anti-Freeze" fire protection systems shall have a "Reduced Pressure Principal Backflow Prevention Device" in the system. The manufacturer shall be as approved by the OEPA.
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