§ 42-60. Protective devices for fire service systems.

(a)

Fire service systems having direct connections from the waterworks system with no pumps or storage facilities, no connections to other water supplies, no pumper connections, no antifreeze or other chemicals added to the fire system, and all sprinkler heads discharging to the atmosphere, are not required to have positive protective devices.

(b)

In systems the same as referred to in subsection (a), which have booster pumps installed in the connection from the waterworks system, provision shall be made to avoid lowering the pressure at the connection to the waterworks system below ten (10) psi.

(c)

Systems the same as referred to in subsections (a) and (b) and having one (1) or more of the following: pumper connections; elevated storage tanks; fire pumps taking suction from above ground, covered reservoirs or tanks; and pressure tanks, must provide an air gap, a reduced pressure principle backflow preventer, or a double gate double check valve assembly. Double gate check valve assemblies will be allowed only when all storage facilities are filled with, or connected to, city water only; and the water in the tanks is maintained in a potable condition.

(d)

Systems with direct connections to the waterworks system, which are comparable to the systems described in subsections (a) and (b) and which have a readily accessible auxiliary supply within one thousand seven hundred (1,700) feet of the pumper connection, may be required by the director to provide an air gap or a reduced pressure principle backflow preventer.

(e)

Fire service systems having direct connections to the waterworks system and interconnections with auxiliary supplies such as pumps taking suction from raw water sources, exposed storage tanks, industrial water supplies, connections to unapproved groundwaters, or where antifreeze or other chemicals are added, must provide an air gap or a reduced pressure principle backflow preventer.

(f)

Systems having direct connections to the waterworks system from buildings having combined industrial and fire systems, either with or without storage tanks or pump connections, must provide an air gap or a reduced pressure principle backflow preventer.

(Ord. No. 6233-06, § 1)

(Ord. No. 6233-06, § 1)