RES 86171 - Laserfiche WebLink

d. A double check detector check valve must be installed in the portion of the system between the main line and the building. The sprinkler control valve and fire department connections must be installed on the building side of the check valves. e. The portion of the onsite system which is publicly owned must be installed in accordance with City Standard Specifications for Water Distribution Systems. See Standard Drawing No. Priv-1 for a typical public onsite fire system layout. If the onsite system is privately owned, the following apply: a. The domestic and irrigation water services must manifold off of the fire system within the public right-of-way. b. It is the owner's responsibility to routinely test and maintain the onsite fire hydrants, valves, and other system appurtenances. c. The materials to be used for the onsite system may be as allowed in NFPA Pamphlet 24, except that PVC may not be used in the fire system. d. Easements are not necessary for any portion of the system on the building side of the water meters or the double check detector check valve. e. As when the onsite system is public, a double check detector check valve must be installed in the portion of the system between the mainline and the building. The sprinkler control valve and the FDC must be installed on the building side of the check valves. The location of the three items, however, is different with a private onsite system, and must be as shown on Standard Drawing Priv-2. f. See Standard Drawing No. Priv-2 for a typical privately owned onsite system layout. For either type of system, the double check detector check may be installed either above ground, or below ground in a concrete vault. If below ground, clearances must be as 18