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## Standpipe Systems ### During Construction - Standpipe systems should be kept pace with construction or demolition. - Most standpipe systems in buildings under construction will be non-automatic dry systems. - The fire department connection (FDC) is the only source for putting water into the sys...

## Standpipe Systems ### During Construction - Standpipe systems should be kept pace with construction or demolition. - Most standpipe systems in buildings under construction will be non-automatic dry systems. - The fire department connection (FDC) is the only source for putting water into the system until the building is nearly complete. - The FDC must be clearly marked and visible. - All fire personnel must be familiar with its location. - It is common to find floor outlet valves left in the open position during construction. ### Water Testing - Upon arrival to a fire in a building under construction or demolition, first-arriving units should test the first-floor outlet for water. - No water indicates that the riser is dry and numerous valves will be open. - Check each floor outlet while ascending towards the fire. - If the top of the riser is left open without a shutoff, the system is useless. - A riser sectional valve can divide the system into two or more zones. - Valves can be closed to facilitate pressure testing. - If valves are left closed, the system is out of use. - Valves are typically an outside stem and yoke (OS&Y) style. - Check the valves for any problems. **Location** - Valves are usually found every 150 feet of building height or every 15 floors in residential buildings and every 10-12 in commercial buildings. - You can also find a sectional valve on a mechanical equipment floor or in the staircase. - To find the location of a valve, trace the pipe, checking for water.