Specifications include, but are not limited to: making repairs to the DMDC’s (Defense Manpower Data Center) existing fire water supply and main distribution plumbing by replacing rusted and failing valves and fittings, removing the existing fire double check valve from the basement and installing a new one at the exterior of the building adjacent to the existing PIV (post indicator valve), and removing the PIV. All materials and equipment shall be supplied by the Contractor except a single 6” valve on the first floor. All Victaulic couplings disturbed during the repair of the existing fire water supply and main distribution plumbing, and/or indicated on the plans as leaking, shall be reinstalled with new rubber gaskets.